66177048113 has 12 divisors (see below), whose sum is σ = 73312834560. Its totient is φ = 59687230680.

The previous prime is 66177048107. The next prime is 66177048151. The reversal of 66177048113 is 31184077166.

It is a happy number.

It is not a de Polignac number, because 66177048113 - 2²² = 66172853809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66177048173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2137853 + ... + 2168586.

It is an arithmetic number, because the mean of its divisors is an integer number (6109402880).

Almost surely, 2^66177048113 is an apocalyptic number.

It is an amenable number.

66177048113 is a deficient number, since it is larger than the sum of its proper divisors (7135786447).

66177048113 is a wasteful number, since it uses less digits than its factorization.

66177048113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306588 (or 4306577 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 66177048113 in words is "sixty-six billion, one hundred seventy-seven million, forty-eight thousand, one hundred thirteen".