40616635104637 has 2 divisors, whose sum is σ = 40616635104638. Its totient is φ = 40616635104636.

The previous prime is 40616635104593. The next prime is 40616635104667. The reversal of 40616635104637 is 73640153661604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27125493069796 + 13491142034841 = 5208214^2 + 3673029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40616635104637 is a prime.

It is a super-2 number, since 2×40616635104637² (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 (40616635104667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20308317552318 + 20308317552319.

It is an arithmetic number, because the mean of its divisors is an integer number (20308317552319).

Almost surely, 2^{40616635104637} is an apocalyptic number.

It is an amenable number.

40616635104637 is a deficient number, since it is larger than the sum of its proper divisors (1).

40616635104637 is an equidigital number, since it uses as much as digits as its factorization.

40616635104637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 40616635104637 in words is "forty trillion, six hundred sixteen billion, six hundred thirty-five million, one hundred four thousand, six hundred thirty-seven".