231756181657132 has 48 divisors (see below), whose sum is σ = 470531467486080. Its totient is φ = 98770453747200.

The previous prime is 231756181657111. The next prime is 231756181657163.

231756181657132 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428889594 + ... + 1429051777.

It is an arithmetic number, because the mean of its divisors is an integer number (9802738905960).

Almost surely, 2^{231756181657132} is an apocalyptic number.

231756181657132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231756181657132 is an abundant number, since it is smaller than the sum of its proper divisors (238775285828948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231756181657132 is a wasteful number, since it uses less digits than its factorization.

231756181657132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857941502 (or 2857941500 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The spelling of 231756181657132 in words is "two hundred thirty-one trillion, seven hundred fifty-six billion, one hundred eighty-one million, six hundred fifty-seven thousand, one hundred thirty-two".