66412794 has 16 divisors (see below), whose sum is σ = 151800768. Its totient is φ = 18975072.

The previous prime is 66412789. The next prime is 66412807. The reversal of 66412794 is 49721466.

It is a happy 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, 790587 + ... + 790670.

It is an arithmetic number, because the mean of its divisors is an integer number (9487548).

Almost surely, 2^66412794 is an apocalyptic number.

66412794 is an abundant number, since it is smaller than the sum of its proper divisors (85387974).

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

66412794 is a wasteful number, since it uses less digits than its factorization.

66412794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581269.

The product of its digits is 72576, while the sum is 39.

The square root of 66412794 is about 8149.4045181228. The cubic root of 66412794 is about 404.9647766959.

The spelling of 66412794 in words is "sixty-six million, four hundred twelve thousand, seven hundred ninety-four".