66613364 has 24 divisors (see below), whose sum is σ = 119853888. Its totient is φ = 32376960.

The previous prime is 66613307. The next prime is 66613367. The reversal of 66613364 is 46331666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66613367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40649 + ... + 42255.

It is an arithmetic number, because the mean of its divisors is an integer number (4993912).

Almost surely, 2^66613364 is an apocalyptic number.

It is an amenable number.

66613364 is a deficient number, since it is larger than the sum of its proper divisors (53240524).

66613364 is a wasteful number, since it uses less digits than its factorization.

66613364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895 (or 1893 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 66613364 is about 8161.7010481884. The cubic root of 66613364 is about 405.3720383626.

The spelling of 66613364 in words is "sixty-six million, six hundred thirteen thousand, three hundred sixty-four".