66005792 has 12 divisors (see below), whose sum is σ = 129948966. Its totient is φ = 33002880.

The previous prime is 66005767. The next prime is 66005801. The reversal of 66005792 is 29750066.

It can be written as a sum of positive squares in only one way, i.e., 61528336 + 4477456 = 7844^2 + 2116^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031309 + ... + 1031372.

Almost surely, 2^66005792 is an apocalyptic number.

It is an amenable number.

66005792 is a deficient number, since it is larger than the sum of its proper divisors (63943174).

66005792 is a wasteful number, since it uses less digits than its factorization.

66005792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062691 (or 2062683 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 66005792 is about 8124.3948697734. The cubic root of 66005792 is about 404.1358233640.

The spelling of 66005792 in words is "sixty-six million, five thousand, seven hundred ninety-two".