320056660425155 has 8 divisors (see below), whose sum is σ = 384068109639312. Its totient is φ = 256045250254048.

The previous prime is 320056660425149. The next prime is 320056660425193. The reversal of 320056660425155 is 551524066650023.

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

It is a cyclic number.

It is not a de Polignac number, because 320056660425155 - 2³⁰ = 320055586683331 is a prime.

It is a Duffinian 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, 13172024 + ... + 28523946.

It is an arithmetic number, because the mean of its divisors is an integer number (48008513704914).

Almost surely, 2^{320056660425155} is an apocalyptic number.

320056660425155 is a deficient number, since it is larger than the sum of its proper divisors (64011449214157).

320056660425155 is a wasteful number, since it uses less digits than its factorization.

320056660425155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19521525.

The product of its (nonzero) digits is 6480000, while the sum is 50.

The spelling of 320056660425155 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-five thousand, one hundred fifty-five".