66772302 has 16 divisors (see below), whose sum is σ = 133774032. Its totient is φ = 22219200.

The previous prime is 66772283. The next prime is 66772319. The reversal of 66772302 is 20327766.

It is a congruent number.

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, 5653 + ... + 12864.

It is an arithmetic number, because the mean of its divisors is an integer number (8360877).

Almost surely, 2^66772302 is an apocalyptic number.

66772302 is an abundant number, since it is smaller than the sum of its proper divisors (67001730).

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

66772302 is a wasteful number, since it uses less digits than its factorization.

66772302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19123.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 66772302 is about 8171.4320654338. The cubic root of 66772302 is about 405.6941851657.

The spelling of 66772302 in words is "sixty-six million, seven hundred seventy-two thousand, three hundred two".