90602116440 has 128 divisors (see below), whose sum is σ = 297257195520. Its totient is φ = 21909248000.

The previous prime is 90602116439. The next prime is 90602116447. The reversal of 90602116440 is 4461120609.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90602116447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443737 + ... + 614903.

It is an arithmetic number, because the mean of its divisors is an integer number (2322321840).

Almost surely, 2^90602116440 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 90602116440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148628597760).

90602116440 is an abundant number, since it is smaller than the sum of its proper divisors (206655079080).

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

90602116440 is a wasteful number, since it uses less digits than its factorization.

90602116440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171593 (or 171589 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 90602116440 in words is "ninety billion, six hundred two million, one hundred sixteen thousand, four hundred forty".