66295772 has 12 divisors (see below), whose sum is σ = 116853240. Its totient is φ = 32909136.

The previous prime is 66295771. The next prime is 66295777. The reversal of 66295772 is 27759266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66295771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59063 + ... + 60174.

It is an arithmetic number, because the mean of its divisors is an integer number (9737770).

Almost surely, 2^66295772 is an apocalyptic number.

It is an amenable number.

66295772 is a deficient number, since it is larger than the sum of its proper divisors (50557468).

66295772 is a wasteful number, since it uses less digits than its factorization.

66295772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119380 (or 119378 counting only the distinct ones).

The product of its digits is 317520, while the sum is 44.

The square root of 66295772 is about 8142.2215641679. The cubic root of 66295772 is about 404.7267821431.

The spelling of 66295772 in words is "sixty-six million, two hundred ninety-five thousand, seven hundred seventy-two".