64122664 has 16 divisors (see below), whose sum is σ = 122788800. Its totient is φ = 31378992.

The previous prime is 64122659. The next prime is 64122671. The reversal of 64122664 is 46622146.

It is a super-2 number, since 2×64122664² = 8223432076913792, which contains 22 as substring.

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, 84894 + ... + 85645.

It is an arithmetic number, because the mean of its divisors is an integer number (7674300).

Almost surely, 2^64122664 is an apocalyptic number.

It is an amenable number.

64122664 is a deficient number, since it is larger than the sum of its proper divisors (58666136).

64122664 is a wasteful number, since it uses less digits than its factorization.

64122664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170592 (or 170588 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 64122664 is about 8007.6628300647. The cubic root of 64122664 is about 400.2553869091.

The spelling of 64122664 in words is "sixty-four million, one hundred twenty-two thousand, six hundred sixty-four".