16397001792 has 42 divisors (see below), whose sum is σ = 46999046718. Its totient is φ = 5465667072.

The previous prime is 16397001791. The next prime is 16397001811. The reversal of 16397001792 is 29710079361.

16397001792 is a `hidden beast` number, since 1 + 639 + 7 + 0 + 0 + 1 + 7 + 9 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10804355136 + 5592646656 = 103944^2 + 74784^2 .

It is a super-2 number, since 2×16397001792² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16397001791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14232933 + ... + 14234084.

Almost surely, 2^16397001792 is an apocalyptic number.

16397001792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16397001792 is an abundant number, since it is smaller than the sum of its proper divisors (30602044926).

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

16397001792 is a wasteful number, since it uses less digits than its factorization.

16397001792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28467035 (or 28467022 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The spelling of 16397001792 in words is "sixteen billion, three hundred ninety-seven million, one thousand, seven hundred ninety-two".