6411502561 has 8 divisors (see below), whose sum is σ = 6598326080. Its totient is φ = 6225391728.

The previous prime is 6411502547. The next prime is 6411502567. The reversal of 6411502561 is 1652051146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6411502561 - 2²⁹ = 5874631649 is a prime.

It is a super-2 number, since 2×6411502561² = 82214730179419117442, which contains 22 as substring.

It is a Duffinian number.

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

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 in 7 ways as a sum of consecutive naturals, for example, 159891 + ... + 195928.

It is an arithmetic number, because the mean of its divisors is an integer number (824790760).

Almost surely, 2^6411502561 is an apocalyptic number.

It is an amenable number.

6411502561 is a deficient number, since it is larger than the sum of its proper divisors (186823519).

6411502561 is a wasteful number, since it uses less digits than its factorization.

6411502561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356343.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 6411502561 is about 80071.8587332653. The cubic root of 6411502561 is about 1857.7471627158.

The spelling of 6411502561 in words is "six billion, four hundred eleven million, five hundred two thousand, five hundred sixty-one".