22514610991 has 2 divisors, whose sum is σ = 22514610992. Its totient is φ = 22514610990.

The previous prime is 22514610961. The next prime is 22514611003. The reversal of 22514610991 is 19901641522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22514610991 - 2⁹ = 22514610479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22514610961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11257305495 + 11257305496.

It is an arithmetic number, because the mean of its divisors is an integer number (11257305496).

Almost surely, 2^22514610991 is an apocalyptic number.

22514610991 is a deficient number, since it is larger than the sum of its proper divisors (1).

22514610991 is an equidigital number, since it uses as much as digits as its factorization.

22514610991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 22514610991 in words is "twenty-two billion, five hundred fourteen million, six hundred ten thousand, nine hundred ninety-one".