31665330656055 has 96 divisors (see below), whose sum is σ = 57334725092736. Its totient is φ = 16136494083072.

The previous prime is 31665330656041. The next prime is 31665330656119. The reversal of 31665330656055 is 55065603356613.

31665330656055 is a `hidden beast` number, since 3 + 1 + 6 + 6 + 533 + 0 + 6 + 56 + 0 + 55 = 666.

It is not a de Polignac number, because 31665330656055 - 2⁴ = 31665330656039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31665330655992 and 31665330656010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5447327329 + ... + 5447333141.

It is an arithmetic number, because the mean of its divisors is an integer number (597236719716).

Almost surely, 2^{31665330656055} is an apocalyptic number.

31665330656055 is a deficient number, since it is larger than the sum of its proper divisors (25669394436681).

31665330656055 is a wasteful number, since it uses less digits than its factorization.

31665330656055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10617 (or 10614 counting only the distinct ones).

The product of its (nonzero) digits is 21870000, while the sum is 54.

The spelling of 31665330656055 in words is "thirty-one trillion, six hundred sixty-five billion, three hundred thirty million, six hundred fifty-six thousand, fifty-five".