16399673268 has 24 divisors (see below), whose sum is σ = 41744623200. Its totient is φ = 4969597920.

The previous prime is 16399673267. The next prime is 16399673273. The reversal of 16399673268 is 86237699361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16399673261) 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, 62119843 + ... + 62120106.

It is an arithmetic number, because the mean of its divisors is an integer number (1739359300).

Almost surely, 2^16399673268 is an apocalyptic number.

It is an amenable number.

16399673268 is an abundant number, since it is smaller than the sum of its proper divisors (25344949932).

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

16399673268 is a wasteful number, since it uses less digits than its factorization.

16399673268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124239967 (or 124239965 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 60.

The spelling of 16399673268 in words is "sixteen billion, three hundred ninety-nine million, six hundred seventy-three thousand, two hundred sixty-eight".