6411502566 has 32 divisors (see below), whose sum is σ = 16283182080. Its totient is φ = 1831857768.

The previous prime is 6411502547. The next prime is 6411502567. The reversal of 6411502566 is 6652051146.

6411502566 is a `hidden beast` number, since 6 + 41 + 1 + 50 + 2 + 566 = 666.

It is a super-2 number, since 2×6411502566² = 82214730307649168712, 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 6411502566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6411502567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8480446 + ... + 8481201.

It is an arithmetic number, because the mean of its divisors is an integer number (508849440).

Almost surely, 2^6411502566 is an apocalyptic number.

6411502566 is an abundant number, since it is smaller than the sum of its proper divisors (9871679514).

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

6411502566 is a wasteful number, since it uses less digits than its factorization.

6411502566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961665 (or 16961659 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 6411502566 is about 80071.8587644873. The cubic root of 6411502566 is about 1857.7471631987.

The spelling of 6411502566 in words is "six billion, four hundred eleven million, five hundred two thousand, five hundred sixty-six".