39661080972195 has 16 divisors (see below), whose sum is σ = 64073824019712. Its totient is φ = 20947211697120.

The previous prime is 39661080972181. The next prime is 39661080972199. The reversal of 39661080972195 is 59127908016693.

It is not a de Polignac number, because 39661080972195 - 2⁷ = 39661080972067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39661080972199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12835299741 + ... + 12835302830.

It is an arithmetic number, because the mean of its divisors is an integer number (4004614001232).

Almost surely, 2^{39661080972195} is an apocalyptic number.

39661080972195 is a deficient number, since it is larger than the sum of its proper divisors (24412743047517).

39661080972195 is a wasteful number, since it uses less digits than its factorization.

39661080972195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25670602682.

The product of its (nonzero) digits is 44089920, while the sum is 66.

The spelling of 39661080972195 in words is "thirty-nine trillion, six hundred sixty-one billion, eighty million, nine hundred seventy-two thousand, one hundred ninety-five".