66039796 has 24 divisors (see below), whose sum is σ = 119732480. Its totient is φ = 31838400.

The previous prime is 66039793. The next prime is 66039797. The reversal of 66039796 is 69793066.

It is a super-2 number, since 2×66039796² = 8722509311443232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66039791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40240 + ... + 41848.

Almost surely, 2^66039796 is an apocalyptic number.

It is an amenable number.

66039796 is a deficient number, since it is larger than the sum of its proper divisors (53692684).

66039796 is a wasteful number, since it uses less digits than its factorization.

66039796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 66039796 is about 8126.4873100252. The cubic root of 66039796 is about 404.2052105847.

The spelling of 66039796 in words is "sixty-six million, thirty-nine thousand, seven hundred ninety-six".