66570322113 has 24 divisors (see below), whose sum is σ = 102785155200. Its totient is φ = 41415253440.

The previous prime is 66570322111. The next prime is 66570322129. The reversal of 66570322113 is 31122307566.

66570322113 is a `hidden beast` number, since 66 + 570 + 3 + 2 + 21 + 1 + 3 = 666.

It is not a de Polignac number, because 66570322113 - 2¹ = 66570322111 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66570322111) 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, 3913413 + ... + 3930386.

It is an arithmetic number, because the mean of its divisors is an integer number (4282714800).

Almost surely, 2^66570322113 is an apocalyptic number.

It is an amenable number.

66570322113 is a deficient number, since it is larger than the sum of its proper divisors (36214833087).

66570322113 is a wasteful number, since it uses less digits than its factorization.

66570322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7843869 (or 7843866 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Adding to 66570322113 its reverse (31122307566), we get a palindrome (97692629679).

The spelling of 66570322113 in words is "sixty-six billion, five hundred seventy million, three hundred twenty-two thousand, one hundred thirteen".