6411255615 has 12 divisors (see below), whose sum is σ = 11112843144. Its totient is φ = 3419336304.

The previous prime is 6411255551. The next prime is 6411255637. The reversal of 6411255615 is 5165521146.

6411255615 is a `hidden beast` number, since 6 + 4 + 11 + 25 + 5 + 615 = 666.

It is not a de Polignac number, because 6411255615 - 2⁶ = 6411255551 is a prime.

It is a super-2 number, since 2×6411255615² = 82208397121738056450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6411255615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71236129 + ... + 71236218.

It is an arithmetic number, because the mean of its divisors is an integer number (926070262).

Almost surely, 2^6411255615 is an apocalyptic number.

6411255615 is a deficient number, since it is larger than the sum of its proper divisors (4701587529).

6411255615 is a wasteful number, since it uses less digits than its factorization.

6411255615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142472358 (or 142472355 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 6411255615 is about 80070.3166910185. The cubic root of 6411255615 is about 1857.7233113582.

The spelling of 6411255615 in words is "six billion, four hundred eleven million, two hundred fifty-five thousand, six hundred fifteen".