66300864 has 56 divisors (see below), whose sum is σ = 200485248. Its totient is φ = 18942720.

The previous prime is 66300841. The next prime is 66300877. The reversal of 66300864 is 46800366.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23322 + ... + 26009.

Almost surely, 2^66300864 is an apocalyptic number.

66300864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66300864 is an abundant number, since it is smaller than the sum of its proper divisors (134184384).

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

66300864 is a wasteful number, since it uses less digits than its factorization.

66300864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49353 (or 49343 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 66300864 is about 8142.5342492372. The cubic root of 66300864 is about 404.7371438698.

The spelling of 66300864 in words is "sixty-six million, three hundred thousand, eight hundred sixty-four".