12745630165572 has 144 divisors (see below), whose sum is σ = 35500948479360. Its totient is φ = 3837626182656.

The previous prime is 12745630165561. The next prime is 12745630165579. The reversal of 12745630165572 is 27556103654721.

It is a happy number.

12745630165572 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 5 + 6 + 3 + 0 + 1 + 65 + 572 = 666.

It is not an unprimeable number, because it can be changed into a prime (12745630165579) 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 47 ways as a sum of consecutive naturals, for example, 813783 + ... + 5114049.

It is an arithmetic number, because the mean of its divisors is an integer number (246534364440).

Almost surely, 2^{12745630165572} is an apocalyptic number.

12745630165572 is a gapful number since it is divisible by the number (12) 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 12745630165572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17750474239680).

12745630165572 is an abundant number, since it is smaller than the sum of its proper divisors (22755318313788).

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

12745630165572 is a wasteful number, since it uses less digits than its factorization.

12745630165572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300490 (or 4300485 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 54.

The spelling of 12745630165572 in words is "twelve trillion, seven hundred forty-five billion, six hundred thirty million, one hundred sixty-five thousand, five hundred seventy-two".