331360665720 has 64 divisors (see below), whose sum is σ = 1136093713920. Its totient is φ = 75739580544.

The previous prime is 331360665719. The next prime is 331360665781. The reversal of 331360665720 is 27566063133.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 197237652 + ... + 197239331.

It is an arithmetic number, because the mean of its divisors is an integer number (17751464280).

Almost surely, 2^331360665720 is an apocalyptic number.

331360665720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331360665720 is an abundant number, since it is smaller than the sum of its proper divisors (804733048200).

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

331360665720 is a wasteful number, since it uses less digits than its factorization.

331360665720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394477004 (or 394477000 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 42.

The spelling of 331360665720 in words is "three hundred thirty-one billion, three hundred sixty million, six hundred sixty-five thousand, seven hundred twenty".