199952676366137 has 2 divisors, whose sum is σ = 199952676366138. Its totient is φ = 199952676366136.

The previous prime is 199952676366127. The next prime is 199952676366211. The reversal of 199952676366137 is 731663676259991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175517558876416 + 24435117489721 = 13248304^2 + 4943189^2 .

It is a cyclic number.

It is not a de Polignac number, because 199952676366137 - 2³² = 199948381398841 is a prime.

It is a super-2 number, since 2×199952676366137² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (199952676366127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99976338183068 + 99976338183069.

It is an arithmetic number, because the mean of its divisors is an integer number (99976338183069).

Almost surely, 2^{199952676366137} is an apocalyptic number.

It is an amenable number.

199952676366137 is a deficient number, since it is larger than the sum of its proper divisors (1).

199952676366137 is an equidigital number, since it uses as much as digits as its factorization.

199952676366137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4166497440, while the sum is 80.

The spelling of 199952676366137 in words is "one hundred ninety-nine trillion, nine hundred fifty-two billion, six hundred seventy-six million, three hundred sixty-six thousand, one hundred thirty-seven".