66636630158 has 16 divisors (see below), whose sum is σ = 120953883744. Its totient is φ = 26878640640.

The previous prime is 66636630091. The next prime is 66636630167. The reversal of 66636630158 is 85103663666.

66636630158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 139992683 + ... + 139993158.

It is an arithmetic number, because the mean of its divisors is an integer number (7559617734).

Almost surely, 2^66636630158 is an apocalyptic number.

66636630158 is a deficient number, since it is larger than the sum of its proper divisors (54317253586).

66636630158 is a wasteful number, since it uses less digits than its factorization.

66636630158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279985867.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 66636630158 in words is "sixty-six billion, six hundred thirty-six million, six hundred thirty thousand, one hundred fifty-eight".