6664564151 has 4 divisors (see below), whose sum is σ = 7616644752. Its totient is φ = 5712483552.

The previous prime is 6664564133. The next prime is 6664564177. The reversal of 6664564151 is 1514654666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6664564151 - 2¹⁰ = 6664563127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664561151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476040290 + ... + 476040303.

It is an arithmetic number, because the mean of its divisors is an integer number (1904161188).

Almost surely, 2^6664564151 is an apocalyptic number.

6664564151 is a deficient number, since it is larger than the sum of its proper divisors (952080601).

6664564151 is an equidigital number, since it uses as much as digits as its factorization.

6664564151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952080600.

The product of its digits is 518400, while the sum is 44.

The square root of 6664564151 is about 81636.7818510749. The cubic root of 6664564151 is about 1881.8741826595.

The spelling of 6664564151 in words is "six billion, six hundred sixty-four million, five hundred sixty-four thousand, one hundred fifty-one".