90330785502 has 16 divisors (see below), whose sum is σ = 180689653632. Its totient is φ = 30105581400.

The previous prime is 90330785491. The next prime is 90330785509. The reversal of 90330785502 is 20558703309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90330785509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128178 + ... + 1205589.

It is an arithmetic number, because the mean of its divisors is an integer number (11293103352).

Almost surely, 2^90330785502 is an apocalyptic number.

90330785502 is an abundant number, since it is smaller than the sum of its proper divisors (90358868130).

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

90330785502 is a wasteful number, since it uses less digits than its factorization.

90330785502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340223.

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 90330785502 in words is "ninety billion, three hundred thirty million, seven hundred eighty-five thousand, five hundred two".