22644105971 has 2 divisors, whose sum is σ = 22644105972. Its totient is φ = 22644105970.

The previous prime is 22644105949. The next prime is 22644106003. The reversal of 22644105971 is 17950144622.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22644105971 is a prime.

It is not a weakly prime, because it can be changed into another prime (22644105871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322052985 + 11322052986.

It is an arithmetic number, because the mean of its divisors is an integer number (11322052986).

Almost surely, 2^22644105971 is an apocalyptic number.

22644105971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22644105971 is an equidigital number, since it uses as much as digits as its factorization.

22644105971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 22644105971 in words is "twenty-two billion, six hundred forty-four million, one hundred five thousand, nine hundred seventy-one".