272227661631 has 12 divisors (see below), whose sum is σ = 393332989608. Its totient is φ = 181431912624.

The previous prime is 272227661599. The next prime is 272227661639. The reversal of 272227661631 is 136166722272.

272227661631 is a `hidden beast` number, since 2 + 7 + 2 + 2 + 2 + 7 + 6 + 6 + 1 + 631 = 666.

It is not a de Polignac number, because 272227661631 - 2⁵ = 272227661599 is a prime.

It is a super-2 number, since 2×272227661631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272227661639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4400505 + ... + 4461938.

It is an arithmetic number, because the mean of its divisors is an integer number (32777749134).

Almost surely, 2^272227661631 is an apocalyptic number.

272227661631 is a deficient number, since it is larger than the sum of its proper divisors (121105327977).

272227661631 is a wasteful number, since it uses less digits than its factorization.

272227661631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865862 (or 8865859 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 272227661631 in words is "two hundred seventy-two billion, two hundred twenty-seven million, six hundred sixty-one thousand, six hundred thirty-one".