231955664943660 has 48 divisors (see below), whose sum is σ = 742258127821056. Its totient is φ = 53018437701312.

The previous prime is 231955664943647. The next prime is 231955664943661. The reversal of 231955664943660 is 66349466559132.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (231955664943661) 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 15 ways as a sum of consecutive naturals, for example, 276137695942 + ... + 276137696781.

It is an arithmetic number, because the mean of its divisors is an integer number (15463710996272).

Almost surely, 2^{231955664943660} is an apocalyptic number.

231955664943660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231955664943660 is an abundant number, since it is smaller than the sum of its proper divisors (510302462877396).

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

231955664943660 is a wasteful number, since it uses less digits than its factorization.

231955664943660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552275392742 (or 552275392740 counting only the distinct ones).

The product of its (nonzero) digits is 755827200, while the sum is 69.

The spelling of 231955664943660 in words is "two hundred thirty-one trillion, nine hundred fifty-five billion, six hundred sixty-four million, nine hundred forty-three thousand, six hundred sixty".