172315055885 has 8 divisors (see below), whose sum is σ = 236317790976. Its totient is φ = 118158895440.

The previous prime is 172315055849. The next prime is 172315055909. The reversal of 172315055885 is 588550513271.

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-172315055885 is a prime.

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, 2461643621 + ... + 2461643690.

It is an arithmetic number, because the mean of its divisors is an integer number (29539723872).

Almost surely, 2^172315055885 is an apocalyptic number.

It is an amenable number.

172315055885 is a deficient number, since it is larger than the sum of its proper divisors (64002735091).

172315055885 is an equidigital number, since it uses as much as digits as its factorization.

172315055885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923287323.

The product of its (nonzero) digits is 1680000, while the sum is 50.

The spelling of 172315055885 in words is "one hundred seventy-two billion, three hundred fifteen million, fifty-five thousand, eight hundred eighty-five".