90199191182 has 4 divisors (see below), whose sum is σ = 135298786776. Its totient is φ = 45099595590.

The previous prime is 90199191179. The next prime is 90199191253. The reversal of 90199191182 is 28119199109.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90199191182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22549797794 + ... + 22549797797.

It is an arithmetic number, because the mean of its divisors is an integer number (33824696694).

Almost surely, 2^90199191182 is an apocalyptic number.

90199191182 is a deficient number, since it is larger than the sum of its proper divisors (45099595594).

90199191182 is a wasteful number, since it uses less digits than its factorization.

90199191182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45099595593.

The product of its (nonzero) digits is 104976, while the sum is 50.

The spelling of 90199191182 in words is "ninety billion, one hundred ninety-nine million, one hundred ninety-one thousand, one hundred eighty-two".