16157860900 has 36 divisors (see below), whose sum is σ = 35724127572. Its totient is φ = 6341196160.

The previous prime is 16157860867. The next prime is 16157860907. The reversal of 16157860900 is 906875161.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1686252096 + 14471608804 = 41064^2 + 120298^2 .

It is a super-2 number, since 2×16157860900² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16157860907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1519027 + ... + 1529626.

It is an arithmetic number, because the mean of its divisors is an integer number (992336877).

Almost surely, 2^16157860900 is an apocalyptic number.

16157860900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16157860900 is an abundant number, since it is smaller than the sum of its proper divisors (19566266672).

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

16157860900 is a wasteful number, since it uses less digits than its factorization.

16157860900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048720 (or 3048713 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 16157860900 in words is "sixteen billion, one hundred fifty-seven million, eight hundred sixty thousand, nine hundred".