36666666137 has 2 divisors, whose sum is σ = 36666666138. Its totient is φ = 36666666136.

The previous prime is 36666666109. The next prime is 36666666167. The reversal of 36666666137 is 73166666663.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29374189321 + 7292476816 = 171389^2 + 85396^2 .

It is a cyclic number.

It is not a de Polignac number, because 36666666137 - 2¹⁸ = 36666403993 is a prime.

It is not a weakly prime, because it can be changed into another prime (36666666167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18333333068 + 18333333069.

It is an arithmetic number, because the mean of its divisors is an integer number (18333333069).

Almost surely, 2^36666666137 is an apocalyptic number.

It is an amenable number.

36666666137 is a deficient number, since it is larger than the sum of its proper divisors (1).

36666666137 is an equidigital number, since it uses as much as digits as its factorization.

36666666137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 56.

The spelling of 36666666137 in words is "thirty-six billion, six hundred sixty-six million, six hundred sixty-six thousand, one hundred thirty-seven".