231546315655 has 8 divisors (see below), whose sum is σ = 278220702384. Its totient is φ = 184993636800.

The previous prime is 231546315641. The next prime is 231546315673. The reversal of 231546315655 is 556513645132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-231546315655 is a prime.

It is a super-2 number, since 2×231546315655² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30422781 + ... + 30430390.

It is an arithmetic number, because the mean of its divisors is an integer number (34777587798).

Almost surely, 2^231546315655 is an apocalyptic number.

231546315655 is a deficient number, since it is larger than the sum of its proper divisors (46674386729).

231546315655 is an equidigital number, since it uses as much as digits as its factorization.

231546315655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60853937.

The product of its digits is 1620000, while the sum is 46.

The spelling of 231546315655 in words is "two hundred thirty-one billion, five hundred forty-six million, three hundred fifteen thousand, six hundred fifty-five".