66493662 has 16 divisors (see below), whose sum is σ = 136582032. Its totient is φ = 21565440.

The previous prime is 66493657. The next prime is 66493703. The reversal of 66493662 is 26639466.

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, 149539 + ... + 149982.

It is an arithmetic number, because the mean of its divisors is an integer number (8536377).

Almost surely, 2^66493662 is an apocalyptic number.

66493662 is an abundant number, since it is smaller than the sum of its proper divisors (70088370).

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

66493662 is a wasteful number, since it uses less digits than its factorization.

66493662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299563.

The product of its digits is 279936, while the sum is 42.

The square root of 66493662 is about 8154.3645981769. The cubic root of 66493662 is about 405.1290794170.

The spelling of 66493662 in words is "sixty-six million, four hundred ninety-three thousand, six hundred sixty-two".