331256678064 has 80 divisors (see below), whose sum is σ = 924214284000. Its totient is φ = 101633015808.

The previous prime is 331256678047. The next prime is 331256678147. The reversal of 331256678064 is 460876652133.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 331256677998 and 331256678016.

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, 542769 + ... + 978320.

It is an arithmetic number, because the mean of its divisors is an integer number (11552678550).

Almost surely, 2^331256678064 is an apocalyptic number.

It is an amenable number.

331256678064 is an abundant number, since it is smaller than the sum of its proper divisors (592957605936).

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

331256678064 is a wasteful number, since it uses less digits than its factorization.

331256678064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521462 (or 1521456 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 331256678064 in words is "three hundred thirty-one billion, two hundred fifty-six million, six hundred seventy-eight thousand, sixty-four".