66792436 has 12 divisors (see below), whose sum is σ = 116982180. Its totient is φ = 33368960.

The previous prime is 66792433. The next prime is 66792449. The reversal of 66792436 is 63429766.

It can be written as a sum of positive squares in 2 ways, for example, as 39690000 + 27102436 = 6300^2 + 5206^2 .

It is a super-2 number, since 2×66792436² = 8922459013628192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66792392 and 66792401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66792433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691 + ... + 11578.

It is an arithmetic number, because the mean of its divisors is an integer number (9748515).

Almost surely, 2^66792436 is an apocalyptic number.

It is an amenable number.

66792436 is a deficient number, since it is larger than the sum of its proper divisors (50189744).

66792436 is a wasteful number, since it uses less digits than its factorization.

66792436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13634 (or 13632 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The square root of 66792436 is about 8172.6639475755. The cubic root of 66792436 is about 405.7349576898.

The spelling of 66792436 in words is "sixty-six million, seven hundred ninety-two thousand, four hundred thirty-six".