66444792 has 32 divisors (see below), whose sum is σ = 173335680. Its totient is φ = 21185120.

The previous prime is 66444787. The next prime is 66444803. The reversal of 66444792 is 29744466.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59634 + ... + 60737.

It is an arithmetic number, because the mean of its divisors is an integer number (5416740).

Almost surely, 2^66444792 is an apocalyptic number.

It is an amenable number.

66444792 is an abundant number, since it is smaller than the sum of its proper divisors (106890888).

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

66444792 is a wasteful number, since it uses less digits than its factorization.

66444792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120403 (or 120399 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 66444792 is about 8151.3674926358. The cubic root of 66444792 is about 405.0298042386.

The spelling of 66444792 in words is "sixty-six million, four hundred forty-four thousand, seven hundred ninety-two".