16366534272 has 128 divisors (see below), whose sum is σ = 52695403200. Its totient is φ = 4959544320.

The previous prime is 16366534259. The next prime is 16366534307. The reversal of 16366534272 is 27243566361.

16366534272 is a `hidden beast` number, since 1 + 636 + 6 + 5 + 3 + 4 + 2 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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, 177243 + ... + 253274.

Almost surely, 2^16366534272 is an apocalyptic number.

16366534272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16366534272 is an abundant number, since it is smaller than the sum of its proper divisors (36328868928).

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

16366534272 is a wasteful number, since it uses less digits than its factorization.

16366534272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430551 (or 430533 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The spelling of 16366534272 in words is "sixteen billion, three hundred sixty-six million, five hundred thirty-four thousand, two hundred seventy-two".