90022277981440 has 108 divisors (see below), whose sum is σ = 250836628755636. Its totient is φ = 30864781000704.

The previous prime is 90022277981437. The next prime is 90022277981459. The reversal of 90022277981440 is 4418977222009.

It can be written as a sum of positive squares in 2 ways, for example, as 27182792818944 + 62839485162496 = 5213712^2 + 7927136^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717589369 + ... + 717714808.

It is an arithmetic number, because the mean of its divisors is an integer number (2322561377367).

Almost surely, 2^{90022277981440} is an apocalyptic number.

It is an amenable number.

90022277981440 is an abundant number, since it is smaller than the sum of its proper divisors (160814350774196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90022277981440 is a wasteful number, since it uses less digits than its factorization.

90022277981440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435304212 (or 1435304191 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 90022277981440 in words is "ninety trillion, twenty-two billion, two hundred seventy-seven million, nine hundred eighty-one thousand, four hundred forty".