31940886704066 has 32 divisors (see below), whose sum is σ = 51810456504960. Its totient is φ = 14716878201216.

The previous prime is 31940886704053. The next prime is 31940886704081. The reversal of 31940886704066 is 66040768804913.

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, 1890395 + ... + 8213121.

It is an arithmetic number, because the mean of its divisors is an integer number (1619076765780).

Almost surely, 2^{31940886704066} is an apocalyptic number.

31940886704066 is a deficient number, since it is larger than the sum of its proper divisors (19869569800894).

31940886704066 is a wasteful number, since it uses less digits than its factorization.

31940886704066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326378.

The product of its (nonzero) digits is 41803776, while the sum is 62.

The spelling of 31940886704066 in words is "thirty-one trillion, nine hundred forty billion, eight hundred eighty-six million, seven hundred four thousand, sixty-six".