64266856 has 16 divisors (see below), whose sum is σ = 120587940. Its totient is φ = 32110080.

The previous prime is 64266847. The next prime is 64266859. The reversal of 64266856 is 65866246.

It can be written as a sum of positive squares in 2 ways, for example, as 59814756 + 4452100 = 7734^2 + 2110^2 .

It is not an unprimeable number, because it can be changed into a prime (64266859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15960 + ... + 19576.

Almost surely, 2^64266856 is an apocalyptic number.

It is an amenable number.

64266856 is a deficient number, since it is larger than the sum of its proper divisors (56321084).

64266856 is a wasteful number, since it uses less digits than its factorization.

64266856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5844 (or 5840 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 64266856 is about 8016.6611503793. The cubic root of 64266856 is about 400.5551790840. Note that the first 3 decimals are identical.

The spelling of 64266856 in words is "sixty-four million, two hundred sixty-six thousand, eight hundred fifty-six".