16252864552 has 32 divisors (see below), whose sum is σ = 32400668520. Its totient is φ = 7616655360.

The previous prime is 16252864549. The next prime is 16252864561. The reversal of 16252864552 is 25546825261.

It can be written as a sum of positive squares in 4 ways, for example, as 16208854596 + 44009956 = 127314^2 + 6634^2 .

It is a super-2 number, since 2×16252864552² (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 7 ways as a sum of consecutive naturals, for example, 215163 + ... + 280714.

Almost surely, 2^16252864552 is an apocalyptic number.

It is an amenable number.

16252864552 is a deficient number, since it is larger than the sum of its proper divisors (16147803968).

16252864552 is a wasteful number, since it uses less digits than its factorization.

16252864552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496141 (or 496137 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 46.

The spelling of 16252864552 in words is "sixteen billion, two hundred fifty-two million, eight hundred sixty-four thousand, five hundred fifty-two".