40162674661 has 2 divisors, whose sum is σ = 40162674662. Its totient is φ = 40162674660.

The previous prime is 40162674659. The next prime is 40162674703. The reversal of 40162674661 is 16647626104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25035150625 + 15127524036 = 158225^2 + 122994^2 .

It is a cyclic number.

It is not a de Polignac number, because 40162674661 - 2¹ = 40162674659 is a prime.

It is a super-2 number, since 2×40162674661² (a number of 22 digits) contains 22 as substring.

Together with 40162674659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40162674611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20081337330 + 20081337331.

It is an arithmetic number, because the mean of its divisors is an integer number (20081337331).

Almost surely, 2^40162674661 is an apocalyptic number.

It is an amenable number.

40162674661 is a deficient number, since it is larger than the sum of its proper divisors (1).

40162674661 is an equidigital number, since it uses as much as digits as its factorization.

40162674661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 40162674661 in words is "forty billion, one hundred sixty-two million, six hundred seventy-four thousand, six hundred sixty-one".