22154540663 has 2 divisors, whose sum is σ = 22154540664. Its totient is φ = 22154540662.

The previous prime is 22154540659. The next prime is 22154540741. The reversal of 22154540663 is 36604545122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22154540663 - 2² = 22154540659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22154540563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077270331 + 11077270332.

It is an arithmetic number, because the mean of its divisors is an integer number (11077270332).

Almost surely, 2^22154540663 is an apocalyptic number.

22154540663 is a deficient number, since it is larger than the sum of its proper divisors (1).

22154540663 is an equidigital number, since it uses as much as digits as its factorization.

22154540663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 22154540663 in words is "twenty-two billion, one hundred fifty-four million, five hundred forty thousand, six hundred sixty-three".