16397637364 has 24 divisors (see below), whose sum is σ = 29645762048. Its totient is φ = 7927852320.

The previous prime is 16397637343. The next prime is 16397637367. The reversal of 16397637364 is 46373679361.

It is a happy number.

It is a super-2 number, since 2×16397637364² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16397637367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99937 + ... + 206839.

Almost surely, 2^16397637364 is an apocalyptic number.

It is an amenable number.

16397637364 is a deficient number, since it is larger than the sum of its proper divisors (13248124684).

16397637364 is a wasteful number, since it uses less digits than its factorization.

16397637364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108175 (or 108173 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 55.

The spelling of 16397637364 in words is "sixteen billion, three hundred ninety-seven million, six hundred thirty-seven thousand, three hundred sixty-four".