27133415656 has 8 divisors (see below), whose sum is σ = 50875154370. Its totient is φ = 13566707824.

The previous prime is 27133415653. The next prime is 27133415711. The reversal of 27133415656 is 65651433172.

It can be written as a sum of positive squares in only one way, i.e., 24880014756 + 2253400900 = 157734^2 + 47470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×27133415656² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27133415653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1695838471 + ... + 1695838486.

Almost surely, 2^27133415656 is an apocalyptic number.

It is an amenable number.

27133415656 is a deficient number, since it is larger than the sum of its proper divisors (23741738714).

27133415656 is a wasteful number, since it uses less digits than its factorization.

27133415656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391676963 (or 3391676959 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The spelling of 27133415656 in words is "twenty-seven billion, one hundred thirty-three million, four hundred fifteen thousand, six hundred fifty-six".