90455120663 has 2 divisors, whose sum is σ = 90455120664. Its totient is φ = 90455120662.

The previous prime is 90455120603. The next prime is 90455120681. The reversal of 90455120663 is 36602155409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90455120663 - 2³² = 86160153367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90455120663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90455120603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45227560331 + 45227560332.

It is an arithmetic number, because the mean of its divisors is an integer number (45227560332).

Almost surely, 2^90455120663 is an apocalyptic number.

90455120663 is a deficient number, since it is larger than the sum of its proper divisors (1).

90455120663 is an equidigital number, since it uses as much as digits as its factorization.

90455120663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 90455120663 in words is "ninety billion, four hundred fifty-five million, one hundred twenty thousand, six hundred sixty-three".