39961801822164 has 24 divisors (see below), whose sum is σ = 93512919547488. Its totient is φ = 13282212708000.

The previous prime is 39961801822147. The next prime is 39961801822171. The reversal of 39961801822164 is 46122810816993.

It is a junction number, because it is equal to n+sod(n) for n = 39961801822098 and 39961801822107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798483087 + ... + 4798491414.

It is an arithmetic number, because the mean of its divisors is an integer number (3896371647812).

Almost surely, 2^{39961801822164} is an apocalyptic number.

It is an amenable number.

39961801822164 is an abundant number, since it is smaller than the sum of its proper divisors (53551117725324).

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

39961801822164 is a wasteful number, since it uses less digits than its factorization.

39961801822164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596974855 (or 9596974853 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 60.

The spelling of 39961801822164 in words is "thirty-nine trillion, nine hundred sixty-one billion, eight hundred one million, eight hundred twenty-two thousand, one hundred sixty-four".