16632723858 has 32 divisors (see below), whose sum is σ = 34431523200. Its totient is φ = 5350106496.

The previous prime is 16632723841. The next prime is 16632723859. The reversal of 16632723858 is 85832723661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16632723858.

It is not an unprimeable number, because it can be changed into a prime (16632723859) 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, 301510 + ... + 352382.

It is an arithmetic number, because the mean of its divisors is an integer number (1075985100).

Almost surely, 2^16632723858 is an apocalyptic number.

16632723858 is an abundant number, since it is smaller than the sum of its proper divisors (17798799342).

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

16632723858 is a wasteful number, since it uses less digits than its factorization.

16632723858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52786.

The product of its digits is 2903040, while the sum is 51.

The spelling of 16632723858 in words is "sixteen billion, six hundred thirty-two million, seven hundred twenty-three thousand, eight hundred fifty-eight".