66147110092799 has 24 divisors (see below), whose sum is σ = 72376075293264. Its totient is φ = 60243026937600.

The previous prime is 66147110092793. The next prime is 66147110092849. The reversal of 66147110092799 is 99729001174166.

It is not a de Polignac number, because 66147110092799 - 2⁸ = 66147110092543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66147110092793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212830184 + ... + 213140754.

It is an arithmetic number, because the mean of its divisors is an integer number (3015669803886).

Almost surely, 2^{66147110092799} is an apocalyptic number.

66147110092799 is a deficient number, since it is larger than the sum of its proper divisors (6228965200465).

66147110092799 is a wasteful number, since it uses less digits than its factorization.

66147110092799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323687 (or 323656 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 62.

The spelling of 66147110092799 in words is "sixty-six trillion, one hundred forty-seven billion, one hundred ten million, ninety-two thousand, seven hundred ninety-nine".