16136663552 has 40 divisors (see below), whose sum is σ = 32256470796. Its totient is φ = 8064663552.

The previous prime is 16136663503. The next prime is 16136663579. The reversal of 16136663552 is 25536663161.

It can be written as a sum of positive squares in 2 ways, for example, as 15103426816 + 1033236736 = 122896^2 + 32144^2 .

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, 1383248 + ... + 1394864.

Almost surely, 2^16136663552 is an apocalyptic number.

It is an amenable number.

16136663552 is a deficient number, since it is larger than the sum of its proper divisors (16119807244).

16136663552 is an equidigital number, since it uses as much as digits as its factorization.

16136663552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14348 (or 14332 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The spelling of 16136663552 in words is "sixteen billion, one hundred thirty-six million, six hundred sixty-three thousand, five hundred fifty-two".