39576066161 has 2 divisors, whose sum is σ = 39576066162. Its totient is φ = 39576066160.

The previous prime is 39576066143. The next prime is 39576066163. The reversal of 39576066161 is 16166067593.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24166567936 + 15409498225 = 155456^2 + 124135^2 .

It is a cyclic number.

It is not a de Polignac number, because 39576066161 - 2²⁶ = 39508957297 is a prime.

Together with 39576066163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39576066163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19788033080 + 19788033081.

It is an arithmetic number, because the mean of its divisors is an integer number (19788033081).

Almost surely, 2^39576066161 is an apocalyptic number.

It is an amenable number.

39576066161 is a deficient number, since it is larger than the sum of its proper divisors (1).

39576066161 is an equidigital number, since it uses as much as digits as its factorization.

39576066161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 39576066161 in words is "thirty-nine billion, five hundred seventy-six million, sixty-six thousand, one hundred sixty-one".