64402643165 has 8 divisors (see below), whose sum is σ = 88323624960. Its totient is φ = 44161812432.

The previous prime is 64402643159. The next prime is 64402643177. The reversal of 64402643165 is 56134620446.

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 64402643165 - 2⁶ = 64402643101 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 920037725 + ... + 920037794.

It is an arithmetic number, because the mean of its divisors is an integer number (11040453120).

Almost surely, 2^64402643165 is an apocalyptic number.

It is an amenable number.

64402643165 is a deficient number, since it is larger than the sum of its proper divisors (23920981795).

64402643165 is a wasteful number, since it uses less digits than its factorization.

64402643165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840075531.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 64402643165 in words is "sixty-four billion, four hundred two million, six hundred forty-three thousand, one hundred sixty-five".