16397042368 has 56 divisors (see below), whose sum is σ = 39373588512. Its totient is φ = 6613929984.

The previous prime is 16397042323. The next prime is 16397042369. The reversal of 16397042368 is 86324079361.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (16397042369) 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, 1068871 + ... + 1084102.

Almost surely, 2^16397042368 is an apocalyptic number.

It is an amenable number.

16397042368 is an abundant number, since it is smaller than the sum of its proper divisors (22976546144).

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

16397042368 is a wasteful number, since it uses less digits than its factorization.

16397042368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153009 (or 2152999 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 16397042368 in words is "sixteen billion, three hundred ninety-seven million, forty-two thousand, three hundred sixty-eight".