40700637161 has 2 divisors, whose sum is σ = 40700637162. Its totient is φ = 40700637160.

The previous prime is 40700637127. The next prime is 40700637253. The reversal of 40700637161 is 16173600704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20381845225 + 20318791936 = 142765^2 + 142544^2 .

It is a cyclic number.

It is not a de Polignac number, because 40700637161 - 2³⁰ = 39626895337 is a prime.

It is a super-2 number, since 2×40700637161² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40700637101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20350318580 + 20350318581.

It is an arithmetic number, because the mean of its divisors is an integer number (20350318581).

Almost surely, 2^40700637161 is an apocalyptic number.

It is an amenable number.

40700637161 is a deficient number, since it is larger than the sum of its proper divisors (1).

40700637161 is an equidigital number, since it uses as much as digits as its factorization.

40700637161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 40700637161 in words is "forty billion, seven hundred million, six hundred thirty-seven thousand, one hundred sixty-one".