37417161606581 has 2 divisors, whose sum is σ = 37417161606582. Its totient is φ = 37417161606580.

The previous prime is 37417161606553. The next prime is 37417161606667. The reversal of 37417161606581 is 18560616171473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34247191452100 + 3169970154481 = 5852110^2 + 1780441^2 .

It is a cyclic number.

It is not a de Polignac number, because 37417161606581 - 2¹⁰ = 37417161605557 is a prime.

It is a super-2 number, since 2×37417161606581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37417161606511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18708580803290 + 18708580803291.

It is an arithmetic number, because the mean of its divisors is an integer number (18708580803291).

Almost surely, 2^{37417161606581} is an apocalyptic number.

It is an amenable number.

37417161606581 is a deficient number, since it is larger than the sum of its proper divisors (1).

37417161606581 is an equidigital number, since it uses as much as digits as its factorization.

37417161606581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 37417161606581 in words is "thirty-seven trillion, four hundred seventeen billion, one hundred sixty-one million, six hundred six thousand, five hundred eighty-one".