155161451053231 has 32 divisors (see below), whose sum is σ = 178397155302912. Its totient is φ = 132195739253760.

The previous prime is 155161451053229. The next prime is 155161451053261. The reversal of 155161451053231 is 132350154161551.

It is not a de Polignac number, because 155161451053231 - 2¹ = 155161451053229 is a prime.

It is a super-2 number, since 2×155161451053231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155161451053261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6066431715 + ... + 6066457291.

It is an arithmetic number, because the mean of its divisors is an integer number (5574911103216).

Almost surely, 2^{155161451053231} is an apocalyptic number.

155161451053231 is a deficient number, since it is larger than the sum of its proper divisors (23235704249681).

155161451053231 is a wasteful number, since it uses less digits than its factorization.

155161451053231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33679.

The product of its (nonzero) digits is 270000, while the sum is 43.

The spelling of 155161451053231 in words is "one hundred fifty-five trillion, one hundred sixty-one billion, four hundred fifty-one million, fifty-three thousand, two hundred thirty-one".