16157215585620 has 96 divisors (see below), whose sum is σ = 50307996291840. Its totient is φ = 4305067678080.

The previous prime is 16157215585613. The next prime is 16157215585649. The reversal of 16157215585620 is 2658551275161.

16157215585620 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 7 + 2 + 1 + 5 + 5 + 8 + 5 + 620 = 666.

16157215585620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16157215585620² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11572111 + ... + 12892950.

It is an arithmetic number, because the mean of its divisors is an integer number (524041628040).

Almost surely, 2^{16157215585620} is an apocalyptic number.

16157215585620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16157215585620 is an abundant number, since it is smaller than the sum of its proper divisors (34150780706220).

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

16157215585620 is a wasteful number, since it uses less digits than its factorization.

16157215585620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24466302 (or 24466294 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 54.

The spelling of 16157215585620 in words is "sixteen trillion, one hundred fifty-seven billion, two hundred fifteen million, five hundred eighty-five thousand, six hundred twenty".