64616866 has 8 divisors (see below), whose sum is σ = 97145424. Its totient is φ = 32235060.

The previous prime is 64616857. The next prime is 64616879. The reversal of 64616866 is 66861646.

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

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, 35580 + ... + 37351.

It is an arithmetic number, because the mean of its divisors is an integer number (12143178).

Almost surely, 2^64616866 is an apocalyptic number.

64616866 is a deficient number, since it is larger than the sum of its proper divisors (32528558).

64616866 is a wasteful number, since it uses less digits than its factorization.

64616866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73376.

The product of its digits is 248832, while the sum is 43.

The square root of 64616866 is about 8038.4616687523. The cubic root of 64616866 is about 401.2810305224.

The spelling of 64616866 in words is "sixty-four million, six hundred sixteen thousand, eight hundred sixty-six".