66660156066 has 32 divisors (see below), whose sum is σ = 152617144320. Its totient is φ = 19014374736.

The previous prime is 66660156053. The next prime is 66660156083. The reversal of 66660156066 is 66065106666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1281876 + ... + 1332863.

It is an arithmetic number, because the mean of its divisors is an integer number (4769285760).

Almost surely, 2^66660156066 is an apocalyptic number.

66660156066 is an abundant number, since it is smaller than the sum of its proper divisors (85956988254).

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

66660156066 is a wasteful number, since it uses less digits than its factorization.

66660156066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615358.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 66660156066 in words is "sixty-six billion, six hundred sixty million, one hundred fifty-six thousand, sixty-six".