156066225666231 has 32 divisors (see below), whose sum is σ = 213123471784960. Its totient is φ = 101531051596800.

The previous prime is 156066225666227. The next prime is 156066225666251. The reversal of 156066225666231 is 132666522660651.

It is not a de Polignac number, because 156066225666231 - 2² = 156066225666227 is a prime.

It is a super-2 number, since 2×156066225666231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156066225666251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 789546171 + ... + 789743811.

It is an arithmetic number, because the mean of its divisors is an integer number (6660108493280).

Almost surely, 2^{156066225666231} is an apocalyptic number.

156066225666231 is a deficient number, since it is larger than the sum of its proper divisors (57057246118729).

156066225666231 is a wasteful number, since it uses less digits than its factorization.

156066225666231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203287.

The product of its (nonzero) digits is 27993600, while the sum is 57.

The spelling of 156066225666231 in words is "one hundred fifty-six trillion, sixty-six billion, two hundred twenty-five million, six hundred sixty-six thousand, two hundred thirty-one".