90450106368 has 96 divisors (see below), whose sum is σ = 241285852080. Its totient is φ = 30131978240.

The previous prime is 90450106343. The next prime is 90450106387. The reversal of 90450106368 is 86360105409.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13740838 + ... + 13747418.

Almost surely, 2^90450106368 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 90450106368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120642926040).

90450106368 is an abundant number, since it is smaller than the sum of its proper divisors (150835745712).

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

90450106368 is a wasteful number, since it uses less digits than its factorization.

90450106368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 90450106368 in words is "ninety billion, four hundred fifty million, one hundred six thousand, three hundred sixty-eight".