6415965564 has 12 divisors (see below), whose sum is σ = 14970586344. Its totient is φ = 2138655184.

The previous prime is 6415965527. The next prime is 6415965601. The reversal of 6415965564 is 4655695146.

It is an interprime number because it is at equal distance from previous prime (6415965527) and next prime (6415965601).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6415965564² = 82329228236867676192, which 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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267331887 + ... + 267331910.

It is an arithmetic number, because the mean of its divisors is an integer number (1247548862).

Almost surely, 2^6415965564 is an apocalyptic number.

It is an amenable number.

6415965564 is an abundant number, since it is smaller than the sum of its proper divisors (8554620780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6415965564 is a wasteful number, since it uses less digits than its factorization.

6415965564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534663804 (or 534663802 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 51.

The square root of 6415965564 is about 80099.7226212426. The cubic root of 6415965564 is about 1858.1781177598.

The spelling of 6415965564 in words is "six billion, four hundred fifteen million, nine hundred sixty-five thousand, five hundred sixty-four".