240031622664991 has 2 divisors, whose sum is σ = 240031622664992. Its totient is φ = 240031622664990.

The previous prime is 240031622664989. The next prime is 240031622665061. The reversal of 240031622664991 is 199466226130042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240031622664991 - 2¹ = 240031622664989 is a prime.

It is a super-2 number, since 2×240031622664991² (a number of 30 digits) contains 22 as substring.

Together with 240031622664989, 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 (240031622664941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120015811332495 + 120015811332496.

It is an arithmetic number, because the mean of its divisors is an integer number (120015811332496).

Almost surely, 2^{240031622664991} is an apocalyptic number.

240031622664991 is a deficient number, since it is larger than the sum of its proper divisors (1).

240031622664991 is an equidigital number, since it uses as much as digits as its factorization.

240031622664991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 55.

The spelling of 240031622664991 in words is "two hundred forty trillion, thirty-one billion, six hundred twenty-two million, six hundred sixty-four thousand, nine hundred ninety-one".