40155100339457 has 2 divisors, whose sum is σ = 40155100339458. Its totient is φ = 40155100339456.

The previous prime is 40155100339451. The next prime is 40155100339507. The reversal of 40155100339457 is 75493300155104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27291680532736 + 12863419806721 = 5224144^2 + 3586561^2 .

It is a cyclic number.

It is not a de Polignac number, because 40155100339457 - 2⁸ = 40155100339201 is a prime.

It is a super-2 number, since 2×40155100339457² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40155100339451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20077550169728 + 20077550169729.

It is an arithmetic number, because the mean of its divisors is an integer number (20077550169729).

Almost surely, 2^{40155100339457} is an apocalyptic number.

It is an amenable number.

40155100339457 is a deficient number, since it is larger than the sum of its proper divisors (1).

40155100339457 is an equidigital number, since it uses as much as digits as its factorization.

40155100339457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 40155100339457 in words is "forty trillion, one hundred fifty-five billion, one hundred million, three hundred thirty-nine thousand, four hundred fifty-seven".