231620503636136 has 32 divisors (see below), whose sum is σ = 479827641810240. Its totient is φ = 104258845625088.

The previous prime is 231620503636133. The next prime is 231620503636141. The reversal of 231620503636136 is 631636305026132.

It is not an unprimeable number, because it can be changed into a prime (231620503636133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37023734666 + ... + 37023740921.

It is an arithmetic number, because the mean of its divisors is an integer number (14994613806570).

Almost surely, 2^{231620503636136} is an apocalyptic number.

It is an amenable number.

231620503636136 is an abundant number, since it is smaller than the sum of its proper divisors (248207138174104).

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

231620503636136 is a wasteful number, since it uses less digits than its factorization.

231620503636136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74047475633 (or 74047475629 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 47.

The spelling of 231620503636136 in words is "two hundred thirty-one trillion, six hundred twenty billion, five hundred three million, six hundred thirty-six thousand, one hundred thirty-six".