64664654 has 8 divisors (see below), whose sum is σ = 97223328. Its totient is φ = 32256880.

The previous prime is 64664629. The next prime is 64664683. The reversal of 64664654 is 45646646.

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

It is a congruent number.

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, 36647 + ... + 38370.

It is an arithmetic number, because the mean of its divisors is an integer number (12152916).

Almost surely, 2^64664654 is an apocalyptic number.

64664654 is a deficient number, since it is larger than the sum of its proper divisors (32558674).

64664654 is a wasteful number, since it uses less digits than its factorization.

64664654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75450.

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

The square root of 64664654 is about 8041.4335786600. The cubic root of 64664654 is about 401.3799298431.

The spelling of 64664654 in words is "sixty-four million, six hundred sixty-four thousand, six hundred fifty-four".