320625616504055 has 8 divisors (see below), whose sum is σ = 387332959536000. Its totient is φ = 254779013382496.

The previous prime is 320625616504031. The next prime is 320625616504129. The reversal of 320625616504055 is 550405616526023.

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 320625616504055 - 2⁶ = 320625616503991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320625616503994 and 320625616504012.

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, 215184976775 + ... + 215184978264.

It is an arithmetic number, because the mean of its divisors is an integer number (48416619942000).

Almost surely, 2^{320625616504055} is an apocalyptic number.

320625616504055 is a deficient number, since it is larger than the sum of its proper divisors (66707343031945).

320625616504055 is a wasteful number, since it uses less digits than its factorization.

320625616504055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430369955193.

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

The spelling of 320625616504055 in words is "three hundred twenty trillion, six hundred twenty-five billion, six hundred sixteen million, five hundred four thousand, fifty-five".