66307674 has 16 divisors (see below), whose sum is σ = 133146720. Its totient is φ = 22014000.

The previous prime is 66307673. The next prime is 66307679. The reversal of 66307674 is 47670366.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66307673) 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, 20509 + ... + 23520.

It is an arithmetic number, because the mean of its divisors is an integer number (8321670).

Almost surely, 2^66307674 is an apocalyptic number.

66307674 is an abundant number, since it is smaller than the sum of its proper divisors (66839046).

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

66307674 is a wasteful number, since it uses less digits than its factorization.

66307674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44285.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 66307674 is about 8142.9524129765. The cubic root of 66307674 is about 404.7510007309.

The spelling of 66307674 in words is "sixty-six million, three hundred seven thousand, six hundred seventy-four".