37540050161 has 2 divisors, whose sum is σ = 37540050162. Its totient is φ = 37540050160.

The previous prime is 37540050157. The next prime is 37540050167. The reversal of 37540050161 is 16105004573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21880030561 + 15660019600 = 147919^2 + 125140^2 .

It is a cyclic number.

It is not a de Polignac number, because 37540050161 - 2² = 37540050157 is a prime.

It is a super-2 number, since 2×37540050161² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (37540050167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18770025080 + 18770025081.

It is an arithmetic number, because the mean of its divisors is an integer number (18770025081).

Almost surely, 2^37540050161 is an apocalyptic number.

It is an amenable number.

37540050161 is a deficient number, since it is larger than the sum of its proper divisors (1).

37540050161 is an equidigital number, since it uses as much as digits as its factorization.

37540050161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 37540050161 in words is "thirty-seven billion, five hundred forty million, fifty thousand, one hundred sixty-one".