16266817764 has 48 divisors (see below), whose sum is σ = 42432008640. Its totient is φ = 5389001280.

The previous prime is 16266817759. The next prime is 16266817771. The reversal of 16266817764 is 46771866261.

16266817764 is a `hidden beast` number, since 1 + 626 + 6 + 8 + 1 + 7 + 7 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 16266817764.

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, 444417 + ... + 479624.

It is an arithmetic number, because the mean of its divisors is an integer number (884000180).

Almost surely, 2^16266817764 is an apocalyptic number.

It is an amenable number.

16266817764 is an abundant number, since it is smaller than the sum of its proper divisors (26165190876).

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

16266817764 is a wasteful number, since it uses less digits than its factorization.

16266817764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924217 (or 924209 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 16266817764 in words is "sixteen billion, two hundred sixty-six million, eight hundred seventeen thousand, seven hundred sixty-four".