16255398297600 has 3780 divisors, whose sum is σ = 77459521601448. Its totient is φ = 3344302080000.

The previous prime is 16255398297581. The next prime is 16255398297601. The reversal of 16255398297600 is 679289355261.

16255398297600 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 539 + 8 + 2 + 97 + 6 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3780).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16255398297601) by changing a digit.

It is a polite number, since it can be written in 251 ways as a sum of consecutive naturals, for example, 160944537550 + ... + 160944537650.

Almost surely, 2^{16255398297600} is an apocalyptic number.

16255398297600 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 16255398297600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38729760800724).

16255398297600 is an abundant number, since it is smaller than the sum of its proper divisors (61204123303848).

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

16255398297600 is an equidigital number, since it uses as much as digits as its factorization.

16255398297600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 63.

The spelling of 16255398297600 in words is "sixteen trillion, two hundred fifty-five billion, three hundred ninety-eight million, two hundred ninety-seven thousand, six hundred".