64676566 has 8 divisors (see below), whose sum is σ = 97145280. Its totient is φ = 32294808.

The previous prime is 64676539. The next prime is 64676587. The reversal of 64676566 is 66567646.

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, 19846 + ... + 22873.

It is an arithmetic number, because the mean of its divisors is an integer number (12143160).

Almost surely, 2^64676566 is an apocalyptic number.

64676566 is a deficient number, since it is larger than the sum of its proper divisors (32468714).

64676566 is a wasteful number, since it uses less digits than its factorization.

64676566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43478.

The product of its digits is 1088640, while the sum is 46.

The square root of 64676566 is about 8042.1742085085. The cubic root of 64676566 is about 401.4045746522.

The spelling of 64676566 in words is "sixty-four million, six hundred seventy-six thousand, five hundred sixty-six".