66464200 has 48 divisors (see below), whose sum is σ = 168582960. Its totient is φ = 24168000.

The previous prime is 66464191. The next prime is 66464207. The reversal of 66464200 is 246466.

It is not an unprimeable number, because it can be changed into a prime (66464207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12906 + ... + 17305.

It is an arithmetic number, because the mean of its divisors is an integer number (3512145).

Almost surely, 2^66464200 is an apocalyptic number.

It is an amenable number.

66464200 is an abundant number, since it is smaller than the sum of its proper divisors (102118760).

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

66464200 is a wasteful number, since it uses less digits than its factorization.

66464200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30238 (or 30229 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 66464200 is about 8152.5578808126. The cubic root of 66464200 is about 405.0692357374.

The spelling of 66464200 in words is "sixty-six million, four hundred sixty-four thousand, two hundred".