11455820198 has 4 divisors (see below), whose sum is σ = 17183730300. Its totient is φ = 5727910098.

The previous prime is 11455820161. The next prime is 11455820213. The reversal of 11455820198 is 89102855411.

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

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, 2863955048 + ... + 2863955051.

It is an arithmetic number, because the mean of its divisors is an integer number (4295932575).

Almost surely, 2^11455820198 is an apocalyptic number.

11455820198 is a deficient number, since it is larger than the sum of its proper divisors (5727910102).

11455820198 is an equidigital number, since it uses as much as digits as its factorization.

11455820198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727910101.

The product of its (nonzero) digits is 115200, while the sum is 44.

The spelling of 11455820198 in words is "eleven billion, four hundred fifty-five million, eight hundred twenty thousand, one hundred ninety-eight".