7312155085320 has 64 divisors (see below), whose sum is σ = 22200760048320. Its totient is φ = 1926415152384.

The previous prime is 7312155085307. The next prime is 7312155085343. The reversal of 7312155085320 is 235805512137.

It is a super-2 number, since 2×7312155085320² (a number of 27 digits) contains 22 as substring.

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, 367066099 + ... + 367086018.

It is an arithmetic number, because the mean of its divisors is an integer number (346886875755).

Almost surely, 2^{7312155085320} is an apocalyptic number.

It is an amenable number.

7312155085320 is an abundant number, since it is smaller than the sum of its proper divisors (14888604963000).

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

7312155085320 is a wasteful number, since it uses less digits than its factorization.

7312155085320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734152214 (or 734152210 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 7312155085320 in words is "seven trillion, three hundred twelve billion, one hundred fifty-five million, eighty-five thousand, three hundred twenty".