16501610166 has 32 divisors (see below), whose sum is σ = 33175872000. Its totient is φ = 5471810400.

The previous prime is 16501610149. The next prime is 16501610173. The reversal of 16501610166 is 66101610561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1501660 + ... + 1512608.

It is an arithmetic number, because the mean of its divisors is an integer number (1036746000).

Almost surely, 2^16501610166 is an apocalyptic number.

16501610166 is an abundant number, since it is smaller than the sum of its proper divisors (16674261834).

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

16501610166 is a wasteful number, since it uses less digits than its factorization.

16501610166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12244.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 16501610166 in words is "sixteen billion, five hundred one million, six hundred ten thousand, one hundred sixty-six".