16466066656 has 24 divisors (see below), whose sum is σ = 34911228744. Its totient is φ = 7599722880.

The previous prime is 16466066641. The next prime is 16466066693. The reversal of 16466066656 is 65666066461.

It is a super-2 number, since 2×16466066656² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19790530 + ... + 19791361.

It is an arithmetic number, because the mean of its divisors is an integer number (1454634531).

Almost surely, 2^16466066656 is an apocalyptic number.

16466066656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16466066656 is an abundant number, since it is smaller than the sum of its proper divisors (18445162088).

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

16466066656 is a wasteful number, since it uses less digits than its factorization.

16466066656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39581914 (or 39581906 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 16466066656 in words is "sixteen billion, four hundred sixty-six million, sixty-six thousand, six hundred fifty-six".