66057418 has 16 divisors (see below), whose sum is σ = 117146880. Its totient is φ = 27333936.

The previous prime is 66057391. The next prime is 66057421. The reversal of 66057418 is 81475066.

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, 80946 + ... + 81757.

It is an arithmetic number, because the mean of its divisors is an integer number (7321680).

Almost surely, 2^66057418 is an apocalyptic number.

66057418 is a deficient number, since it is larger than the sum of its proper divisors (51089462).

66057418 is a wasteful number, since it uses less digits than its factorization.

66057418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162741.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 66057418 is about 8127.5714700026. The cubic root of 66057418 is about 404.2411599727.

The spelling of 66057418 in words is "sixty-six million, fifty-seven thousand, four hundred eighteen".