40660642302331 has 2 divisors, whose sum is σ = 40660642302332. Its totient is φ = 40660642302330.

The previous prime is 40660642302323. The next prime is 40660642302361. The reversal of 40660642302331 is 13320324606604.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40660642302331 - 2³ = 40660642302323 is a prime.

It is a super-2 number, since 2×40660642302331² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40660642302361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20330321151165 + 20330321151166.

It is an arithmetic number, because the mean of its divisors is an integer number (20330321151166).

Almost surely, 2^{40660642302331} is an apocalyptic number.

40660642302331 is a deficient number, since it is larger than the sum of its proper divisors (1).

40660642302331 is an equidigital number, since it uses as much as digits as its factorization.

40660642302331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 40.

Adding to 40660642302331 its reverse (13320324606604), we get a palindrome (53980966908935).

The spelling of 40660642302331 in words is "forty trillion, six hundred sixty billion, six hundred forty-two million, three hundred two thousand, three hundred thirty-one".