16506754056 has 96 divisors (see below), whose sum is σ = 49446011160. Its totient is φ = 4941720576.

The previous prime is 16506754049. The next prime is 16506754073. The reversal of 16506754056 is 65045760561.

16506754056 is a `hidden beast` number, since 1 + 6 + 50 + 6 + 7 + 540 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15039097956 + 1467656100 = 122634^2 + 38310^2 .

It is a super-2 number, since 2×16506754056² (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 23 ways as a sum of consecutive naturals, for example, 203685 + ... + 272948.

Almost surely, 2^16506754056 is an apocalyptic number.

It is an amenable number.

16506754056 is an abundant number, since it is smaller than the sum of its proper divisors (32939257104).

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

16506754056 is a wasteful number, since it uses less digits than its factorization.

16506754056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476695 (or 476688 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 16506754056 in words is "sixteen billion, five hundred six million, seven hundred fifty-four thousand, fifty-six".