66118364 has 12 divisors (see below), whose sum is σ = 124607784. Its totient is φ = 30516144.

The previous prime is 66118361. The next prime is 66118373. The reversal of 66118364 is 46381166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66118361) 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, 635702 + ... + 635805.

It is an arithmetic number, because the mean of its divisors is an integer number (10383982).

Almost surely, 2^66118364 is an apocalyptic number.

It is an amenable number.

66118364 is a deficient number, since it is larger than the sum of its proper divisors (58489420).

66118364 is a wasteful number, since it uses less digits than its factorization.

66118364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271524 (or 1271522 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 66118364 is about 8131.3199420512. The cubic root of 66118364 is about 404.3654422992.

The spelling of 66118364 in words is "sixty-six million, one hundred eighteen thousand, three hundred sixty-four".