16277855818 has 32 divisors (see below), whose sum is σ = 28141810560. Its totient is φ = 6917222400.

The previous prime is 16277855809. The next prime is 16277855819. The reversal of 16277855818 is 81855877261.

It is not an unprimeable number, because it can be changed into a prime (16277855819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875418 + ... + 893818.

It is an arithmetic number, because the mean of its divisors is an integer number (879431580).

Almost surely, 2^16277855818 is an apocalyptic number.

16277855818 is a deficient number, since it is larger than the sum of its proper divisors (11863954742).

16277855818 is a wasteful number, since it uses less digits than its factorization.

16277855818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18942.

The product of its digits is 7526400, while the sum is 58.

The spelling of 16277855818 in words is "sixteen billion, two hundred seventy-seven million, eight hundred fifty-five thousand, eight hundred eighteen".