231655906342629 has 24 divisors (see below), whose sum is σ = 334701286227360. Its totient is φ = 154397030385312.

The previous prime is 231655906342613. The next prime is 231655906342631. The reversal of 231655906342629 is 926243609556132.

It is a happy number.

231655906342629 is a `hidden beast` number, since 2 + 3 + 1 + 6 + 5 + 590 + 6 + 34 + 2 + 6 + 2 + 9 = 666.

It is not a de Polignac number, because 231655906342629 - 2⁴ = 231655906342613 is a prime.

It is a super-2 number, since 2×231655906342629² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231655906342429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541794442 + ... + 542221844.

It is an arithmetic number, because the mean of its divisors is an integer number (13945886926140).

Almost surely, 2^{231655906342629} is an apocalyptic number.

It is an amenable number.

231655906342629 is a deficient number, since it is larger than the sum of its proper divisors (103045379884731).

231655906342629 is a wasteful number, since it uses less digits than its factorization.

231655906342629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442961 (or 442958 counting only the distinct ones).

The product of its (nonzero) digits is 125971200, while the sum is 63.

The spelling of 231655906342629 in words is "two hundred thirty-one trillion, six hundred fifty-five billion, nine hundred six million, three hundred forty-two thousand, six hundred twenty-nine".