3121065630616 has 8 divisors (see below), whose sum is σ = 5851998057420. Its totient is φ = 1560532815304.

The previous prime is 3121065630593. The next prime is 3121065630637. The reversal of 3121065630616 is 6160365601213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3121065630616² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195066601906 + ... + 195066601921.

Almost surely, 2^{3121065630616} is an apocalyptic number.

It is an amenable number.

3121065630616 is a deficient number, since it is larger than the sum of its proper divisors (2730932426804).

3121065630616 is a wasteful number, since it uses less digits than its factorization.

3121065630616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390133203833 (or 390133203829 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 3121065630616 in words is "three trillion, one hundred twenty-one billion, sixty-five million, six hundred thirty thousand, six hundred sixteen".