66117316 has 12 divisors (see below), whose sum is σ = 118396432. Its totient is φ = 32289768.

The previous prime is 66117257. The next prime is 66117319. The reversal of 66117316 is 61371166.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66117319) 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, 192030 + ... + 192373.

Almost surely, 2^66117316 is an apocalyptic number.

It is an amenable number.

66117316 is a deficient number, since it is larger than the sum of its proper divisors (52279116).

66117316 is a wasteful number, since it uses less digits than its factorization.

66117316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384450 (or 384448 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 66117316 is about 8131.2554996138. The cubic root of 66117316 is about 404.3633058417.

The spelling of 66117316 in words is "sixty-six million, one hundred seventeen thousand, three hundred sixteen".