40310166979081 has 2 divisors, whose sum is σ = 40310166979082. Its totient is φ = 40310166979080.

The previous prime is 40310166979051. The next prime is 40310166979141. The reversal of 40310166979081 is 18097966101304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36388836323856 + 3921330655225 = 6032316^2 + 1980235^2 .

It is a cyclic number.

It is not a de Polignac number, because 40310166979081 - 2¹¹ = 40310166977033 is a prime.

It is a super-2 number, since 2×40310166979081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40310166979031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20155083489540 + 20155083489541.

It is an arithmetic number, because the mean of its divisors is an integer number (20155083489541).

Almost surely, 2^{40310166979081} is an apocalyptic number.

It is an amenable number.

40310166979081 is a deficient number, since it is larger than the sum of its proper divisors (1).

40310166979081 is an equidigital number, since it uses as much as digits as its factorization.

40310166979081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 40310166979081 in words is "forty trillion, three hundred ten billion, one hundred sixty-six million, nine hundred seventy-nine thousand, eighty-one".