16534412928 has 128 divisors (see below), whose sum is σ = 53235921600. Its totient is φ = 5010416640.

The previous prime is 16534412837. The next prime is 16534412963. The reversal of 16534412928 is 82921443561.

16534412928 is a `hidden beast` number, since 16 + 5 + 344 + 1 + 292 + 8 = 666.

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

It is a super-2 number, since 2×16534412928² (a number of 21 digits) contains 22 as substring.

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, 179451 + ... + 255482.

Almost surely, 2^16534412928 is an apocalyptic number.

16534412928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16534412928 is an abundant number, since it is smaller than the sum of its proper divisors (36701508672).

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

16534412928 is a wasteful number, since it uses less digits than its factorization.

16534412928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434967 (or 434949 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

It can be divided in two parts, 1653441 and 2928, that added together give a square (1656369 = 1287²).

The spelling of 16534412928 in words is "sixteen billion, five hundred thirty-four million, four hundred twelve thousand, nine hundred twenty-eight".