66917364 has 24 divisors (see below), whose sum is σ = 156487968. Its totient is φ = 22256160.

The previous prime is 66917359. The next prime is 66917381. The reversal of 66917364 is 46371966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367 + ... + 11574.

It is an arithmetic number, because the mean of its divisors is an integer number (6520332).

Almost surely, 2^66917364 is an apocalyptic number.

It is an amenable number.

66917364 is an abundant number, since it is smaller than the sum of its proper divisors (89570604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66917364 is a wasteful number, since it uses less digits than its factorization.

66917364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12415 (or 12413 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 66917364 is about 8180.3034173556. The cubic root of 66917364 is about 405.9877612042.

The spelling of 66917364 in words is "sixty-six million, nine hundred seventeen thousand, three hundred sixty-four".