64501618 has 8 divisors (see below), whose sum is σ = 101844720. Its totient is φ = 30553380.

The previous prime is 64501609. The next prime is 64501663. The reversal of 64501618 is 81610546.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64501618.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848668 + ... + 848743.

It is an arithmetic number, because the mean of its divisors is an integer number (12730590).

Almost surely, 2^64501618 is an apocalyptic number.

64501618 is a deficient number, since it is larger than the sum of its proper divisors (37343102).

64501618 is a wasteful number, since it uses less digits than its factorization.

64501618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697432.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 64501618 is about 8031.2899337529. The cubic root of 64501618 is about 401.0423190682.

The spelling of 64501618 in words is "sixty-four million, five hundred one thousand, six hundred eighteen".