66794662 has 12 divisors (see below), whose sum is σ = 110128788. Its totient is φ = 30361100.

The previous prime is 66794659. The next prime is 66794669. The reversal of 66794662 is 26649766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66794669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137764 + ... + 138247.

It is an arithmetic number, because the mean of its divisors is an integer number (9177399).

Almost surely, 2^66794662 is an apocalyptic number.

66794662 is a deficient number, since it is larger than the sum of its proper divisors (43334126).

66794662 is a wasteful number, since it uses less digits than its factorization.

66794662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276035 (or 276024 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 66794662 is about 8172.8001321457. The cubic root of 66794662 is about 405.7394649665.

Subtracting from 66794662 its reverse (26649766), we obtain a square (40144896 = 6336²).

The spelling of 66794662 in words is "sixty-six million, seven hundred ninety-four thousand, six hundred sixty-two".