12701621145600 has 780 divisors, whose sum is σ = 47142967781580. Its totient is φ = 3380399308800.

The previous prime is 12701621145571. The next prime is 12701621145607. The reversal of 12701621145600 is 654112610721.

12701621145600 is a `hidden beast` number, since 1 + 2 + 7 + 0 + 1 + 6 + 2 + 1 + 1 + 45 + 600 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 34399862784 + 12667221282816 = 185472^2 + 3559104^2 .

It is a super-2 number, since 2×12701621145600² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12701621145607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5316709206 + ... + 5316711594.

Almost surely, 2^{12701621145600} is an apocalyptic number.

12701621145600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12701621145600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23571483890790).

12701621145600 is an abundant number, since it is smaller than the sum of its proper divisors (34441346635980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12701621145600 is an equidigital number, since it uses as much as digits as its factorization.

12701621145600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 12701621145600 in words is "twelve trillion, seven hundred one billion, six hundred twenty-one million, one hundred forty-five thousand, six hundred".