66694795132 has 18 divisors (see below), whose sum is σ = 135771547632. Its totient is φ = 28583483544.

The previous prime is 66694795103. The next prime is 66694795171. The reversal of 66694795132 is 23159749666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170139588 + ... + 170139979.

Almost surely, 2^66694795132 is an apocalyptic number.

It is an amenable number.

66694795132 is an abundant number, since it is smaller than the sum of its proper divisors (69076752500).

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

66694795132 is a wasteful number, since it uses less digits than its factorization.

66694795132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340279585 (or 340279576 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 58.

The spelling of 66694795132 in words is "sixty-six billion, six hundred ninety-four million, seven hundred ninety-five thousand, one hundred thirty-two".