90115005506 has 16 divisors (see below), whose sum is σ = 135315036000. Its totient is φ = 45010021728.

The previous prime is 90115005499. The next prime is 90115005523. The reversal of 90115005506 is 60550051109.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9295910 + ... + 9305598.

It is an arithmetic number, because the mean of its divisors is an integer number (8457189750).

Almost surely, 2^90115005506 is an apocalyptic number.

90115005506 is a deficient number, since it is larger than the sum of its proper divisors (45200030494).

90115005506 is a wasteful number, since it uses less digits than its factorization.

90115005506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14113.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 90115005506 in words is "ninety billion, one hundred fifteen million, five thousand, five hundred six".