11198955900 has 72 divisors (see below), whose sum is σ = 35347987584. Its totient is φ = 2714897600.

The previous prime is 11198955899. The next prime is 11198955931. The reversal of 11198955900 is 955989111.

It is a super-2 number, since 2×11198955900² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11198955900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1693512 + ... + 1700111.

It is an arithmetic number, because the mean of its divisors is an integer number (490944272).

Almost surely, 2^11198955900 is an apocalyptic number.

11198955900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11198955900 is an abundant number, since it is smaller than the sum of its proper divisors (24149031684).

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

11198955900 is a wasteful number, since it uses less digits than its factorization.

11198955900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393651 (or 3393644 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 48.

The spelling of 11198955900 in words is "eleven billion, one hundred ninety-eight million, nine hundred fifty-five thousand, nine hundred".