31666644053 has 8 divisors (see below), whose sum is σ = 36047405376. Its totient is φ = 27536212000.

The previous prime is 31666644049. The next prime is 31666644059. The reversal of 31666644053 is 35044666613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31666644053 - 2² = 31666644049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31666643995 and 31666644013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31666644059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62582048 + ... + 62582553.

It is an arithmetic number, because the mean of its divisors is an integer number (4505925672).

Almost surely, 2^31666644053 is an apocalyptic number.

It is an amenable number.

31666644053 is a deficient number, since it is larger than the sum of its proper divisors (4380761323).

31666644053 is a wasteful number, since it uses less digits than its factorization.

31666644053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125164635.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 31666644053 in words is "thirty-one billion, six hundred sixty-six million, six hundred forty-four thousand, fifty-three".