27666037172 has 24 divisors (see below), whose sum is σ = 50107932672. Its totient is φ = 13351816800.

The previous prime is 27666037151. The next prime is 27666037177. The reversal of 27666037172 is 27173066672.

It is a super-2 number, since 2×27666037172² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27666037177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243779 + ... + 338762.

It is an arithmetic number, because the mean of its divisors is an integer number (2087830528).

Almost surely, 2^27666037172 is an apocalyptic number.

It is an amenable number.

27666037172 is a deficient number, since it is larger than the sum of its proper divisors (22441895500).

27666037172 is a wasteful number, since it uses less digits than its factorization.

27666037172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582959 (or 582957 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 27666037172 in words is "twenty-seven billion, six hundred sixty-six million, thirty-seven thousand, one hundred seventy-two".