66364674 has 16 divisors (see below), whose sum is σ = 133905312. Its totient is φ = 21925568.

The previous prime is 66364657. The next prime is 66364681. The reversal of 66364674 is 47646366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48264 + ... + 49619.

It is an arithmetic number, because the mean of its divisors is an integer number (8369082).

Almost surely, 2^66364674 is an apocalyptic number.

66364674 is an abundant number, since it is smaller than the sum of its proper divisors (67540638).

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

66364674 is a wasteful number, since it uses less digits than its factorization.

66364674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98001.

The product of its digits is 435456, while the sum is 42.

The square root of 66364674 is about 8146.4516201841. The cubic root of 66364674 is about 404.8669460810.

The spelling of 66364674 in words is "sixty-six million, three hundred sixty-four thousand, six hundred seventy-four".