66159496 has 16 divisors (see below), whose sum is σ = 133591500. Its totient is φ = 30535104.

The previous prime is 66159481. The next prime is 66159521. The reversal of 66159496 is 69495166.

It can be written as a sum of positive squares in 2 ways, for example, as 64160100 + 1999396 = 8010^2 + 1414^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317971 + ... + 318178.

Almost surely, 2^66159496 is an apocalyptic number.

It is an amenable number.

66159496 is an abundant number, since it is smaller than the sum of its proper divisors (67432004).

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

66159496 is a wasteful number, since it uses less digits than its factorization.

66159496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636168 (or 636164 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 66159496 is about 8133.8487814810. The cubic root of 66159496 is about 404.4492763537.

The spelling of 66159496 in words is "sixty-six million, one hundred fifty-nine thousand, four hundred ninety-six".