3116465505621 has 12 divisors (see below), whose sum is σ = 4847835231148. Its totient is φ = 1917824926464.

The previous prime is 3116465505619. The next prime is 3116465505679. The reversal of 3116465505621 is 1265055646113.

3116465505621 is a `hidden beast` number, since 3 + 1 + 1 + 6 + 46 + 550 + 56 + 2 + 1 = 666.

3116465505621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 316699943121 + 2799765562500 = 562761^2 + 1673250^2 .

It is not a de Polignac number, because 3116465505621 - 2¹ = 3116465505619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3116465509621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13318228540 + ... + 13318228773.

Almost surely, 2^{3116465505621} is an apocalyptic number.

It is an amenable number.

3116465505621 is a deficient number, since it is larger than the sum of its proper divisors (1731369725527).

3116465505621 is a wasteful number, since it uses less digits than its factorization.

3116465505621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26636457332 (or 26636457329 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

It can be divided in two parts, 3116465 and 505621, that added together give a triangular number (3622086 = T₂₆₉₁).

The spelling of 3116465505621 in words is "three trillion, one hundred sixteen billion, four hundred sixty-five million, five hundred five thousand, six hundred twenty-one".