90964595550 has 96 divisors (see below), whose sum is σ = 230355515232. Its totient is φ = 23749908480.

The previous prime is 90964595473. The next prime is 90964595609. The reversal of 90964595550 is 5559546909.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1469832 + ... + 1530468.

It is an arithmetic number, because the mean of its divisors is an integer number (2399536617).

Almost surely, 2^90964595550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90964595550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115177757616).

90964595550 is an abundant number, since it is smaller than the sum of its proper divisors (139390919682).

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

90964595550 is a wasteful number, since it uses less digits than its factorization.

90964595550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60862 (or 60857 counting only the distinct ones).

The product of its (nonzero) digits is 10935000, while the sum is 57.

The spelling of 90964595550 in words is "ninety billion, nine hundred sixty-four million, five hundred ninety-five thousand, five hundred fifty".