66316794 has 32 divisors (see below), whose sum is σ = 137833920. Its totient is φ = 21245952.

The previous prime is 66316759. The next prime is 66316819. The reversal of 66316794 is 49761366.

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 15 ways as a sum of consecutive naturals, for example, 43977 + ... + 45459.

It is an arithmetic number, because the mean of its divisors is an integer number (4307310).

Almost surely, 2^66316794 is an apocalyptic number.

66316794 is an abundant number, since it is smaller than the sum of its proper divisors (71517126).

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

66316794 is a wasteful number, since it uses less digits than its factorization.

66316794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774.

The product of its digits is 163296, while the sum is 42.

The square root of 66316794 is about 8143.5123871705. The cubic root of 66316794 is about 404.7695564509.

The spelling of 66316794 in words is "sixty-six million, three hundred sixteen thousand, seven hundred ninety-four".