37185587161 has 2 divisors, whose sum is σ = 37185587162. Its totient is φ = 37185587160.

The previous prime is 37185587113. The next prime is 37185587167. The reversal of 37185587161 is 16178558173.

37185587161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24568681536 + 12616905625 = 156744^2 + 112325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37185587161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 37185587099 and 37185587108.

It is not a weakly prime, because it can be changed into another prime (37185587167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18592793580 + 18592793581.

It is an arithmetic number, because the mean of its divisors is an integer number (18592793581).

Almost surely, 2^37185587161 is an apocalyptic number.

It is an amenable number.

37185587161 is a deficient number, since it is larger than the sum of its proper divisors (1).

37185587161 is an equidigital number, since it uses as much as digits as its factorization.

37185587161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 52.

The spelling of 37185587161 in words is "thirty-seven billion, one hundred eighty-five million, five hundred eighty-seven thousand, one hundred sixty-one".