66424708 has 24 divisors (see below), whose sum is σ = 133358400. Its totient is φ = 28358688.

The previous prime is 66424691. The next prime is 66424711. The reversal of 66424708 is 80742466.

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, 3123 + ... + 11941.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^66424708 is an apocalyptic number.

It is an amenable number.

66424708 is an abundant number, since it is smaller than the sum of its proper divisors (66933692).

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

66424708 is a wasteful number, since it uses less digits than its factorization.

66424708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099 (or 9097 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 66424708 is about 8150.1354589970. The cubic root of 66424708 is about 404.9889912163.

The spelling of 66424708 in words is "sixty-six million, four hundred twenty-four thousand, seven hundred eight".