231772505607040 has 128 divisors (see below), whose sum is σ = 577371248553600. Its totient is φ = 88858765836288.

The previous prime is 231772505607023. The next prime is 231772505607059. The reversal of 231772505607040 is 40706505277132.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 43032984 + ... + 48118423.

It is an arithmetic number, because the mean of its divisors is an integer number (4510712879325).

Almost surely, 2^{231772505607040} is an apocalyptic number.

231772505607040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231772505607040 is an abundant number, since it is smaller than the sum of its proper divisors (345598742946560).

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

231772505607040 is a wasteful number, since it uses less digits than its factorization.

231772505607040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91151592 (or 91151580 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 231772505607040 in words is "two hundred thirty-one trillion, seven hundred seventy-two billion, five hundred five million, six hundred seven thousand, forty".