331520026642 has 32 divisors (see below), whose sum is σ = 576159049728. Its totient is φ = 140131963536.

The previous prime is 331520026639. The next prime is 331520026699. The reversal of 331520026642 is 246620025133.

It is a junction number, because it is equal to n+sod(n) for n = 331520026598 and 331520026607.

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, 147418 + ... + 827509.

It is an arithmetic number, because the mean of its divisors is an integer number (18004970304).

Almost surely, 2^331520026642 is an apocalyptic number.

331520026642 is a deficient number, since it is larger than the sum of its proper divisors (244639023086).

331520026642 is a wasteful number, since it uses less digits than its factorization.

331520026642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975270.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 331520026642 in words is "three hundred thirty-one billion, five hundred twenty million, twenty-six thousand, six hundred forty-two".