90040846637056 has 192 divisors, whose sum is σ = 208212202598400. Its totient is φ = 38130482184192.

The previous prime is 90040846637041. The next prime is 90040846637107. The reversal of 90040846637056 is 65073664804009.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573404505 + ... + 573561511.

It is an arithmetic number, because the mean of its divisors is an integer number (1084438555200).

Almost surely, 2^{90040846637056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90040846637056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104106101299200).

90040846637056 is an abundant number, since it is smaller than the sum of its proper divisors (118171355961344).

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

90040846637056 is a wasteful number, since it uses less digits than its factorization.

90040846637056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157512 (or 157492 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 58.

The spelling of 90040846637056 in words is "ninety trillion, forty billion, eight hundred forty-six million, six hundred thirty-seven thousand, fifty-six".