64099866 has 8 divisors (see below), whose sum is σ = 128199744. Its totient is φ = 21366620.

The previous prime is 64099859. The next prime is 64099879. The reversal of 64099866 is 66899046.

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

64099866 is an admirable number.

It is a Curzon 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, 5341650 + ... + 5341661.

It is an arithmetic number, because the mean of its divisors is an integer number (16024968).

Almost surely, 2^64099866 is an apocalyptic number.

64099866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64099866 is a wasteful number, since it uses less digits than its factorization.

64099866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10683316.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 64099866 is about 8006.2391920302. The cubic root of 64099866 is about 400.2079460440.

The spelling of 64099866 in words is "sixty-four million, ninety-nine thousand, eight hundred sixty-six".