321601631778060 has 96 divisors (see below), whose sum is σ = 918775519849152. Its totient is φ = 84035947315200.

The previous prime is 321601631778047. The next prime is 321601631778137. The reversal of 321601631778060 is 60877136106123.

It is a junction number, because it is equal to n+sod(n) for n = 321601631777994 and 321601631778012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272966697 + ... + 274142336.

It is an arithmetic number, because the mean of its divisors is an integer number (9570578331762).

Almost surely, 2^{321601631778060} is an apocalyptic number.

321601631778060 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321601631778060 is an abundant number, since it is smaller than the sum of its proper divisors (597173888071092).

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

321601631778060 is a wasteful number, since it uses less digits than its factorization.

321601631778060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547109243 (or 547109241 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 321601631778060 in words is "three hundred twenty-one trillion, six hundred one billion, six hundred thirty-one million, seven hundred seventy-eight thousand, sixty".