66796366 has 32 divisors (see below), whose sum is σ = 130576320. Its totient is φ = 24869376.

The previous prime is 66796363. The next prime is 66796397. The reversal of 66796366 is 66369766.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66796361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7701 + ... + 13888.

It is an arithmetic number, because the mean of its divisors is an integer number (4080510).

Almost surely, 2^66796366 is an apocalyptic number.

66796366 is a deficient number, since it is larger than the sum of its proper divisors (63779954).

66796366 is a wasteful number, since it uses less digits than its factorization.

66796366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21628.

The product of its digits is 1469664, while the sum is 49.

The square root of 66796366 is about 8172.9043797172. The cubic root of 66796366 is about 405.7429152131.

The spelling of 66796366 in words is "sixty-six million, seven hundred ninety-six thousand, three hundred sixty-six".