66435164 has 6 divisors (see below), whose sum is σ = 116261544. Its totient is φ = 33217580.

The previous prime is 66435157. The next prime is 66435179. The reversal of 66435164 is 46153466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8304392 + ... + 8304399.

It is an arithmetic number, because the mean of its divisors is an integer number (19376924).

Almost surely, 2^66435164 is an apocalyptic number.

It is an amenable number.

66435164 is a deficient number, since it is larger than the sum of its proper divisors (49826380).

66435164 is a wasteful number, since it uses less digits than its factorization.

66435164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16608795 (or 16608793 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 66435164 is about 8150.7768954867. The cubic root of 66435164 is about 405.0102400500.

The spelling of 66435164 in words is "sixty-six million, four hundred thirty-five thousand, one hundred sixty-four".