40340121167 has 2 divisors, whose sum is σ = 40340121168. Its totient is φ = 40340121166.

The previous prime is 40340121137. The next prime is 40340121229. The reversal of 40340121167 is 76112104304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40340121167 - 2²⁶ = 40273012303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40340121137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20170060583 + 20170060584.

It is an arithmetic number, because the mean of its divisors is an integer number (20170060584).

Almost surely, 2^40340121167 is an apocalyptic number.

40340121167 is a deficient number, since it is larger than the sum of its proper divisors (1).

40340121167 is an equidigital number, since it uses as much as digits as its factorization.

40340121167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 40340121167 in words is "forty billion, three hundred forty million, one hundred twenty-one thousand, one hundred sixty-seven".