11199720558 has 32 divisors (see below), whose sum is σ = 24132431232. Its totient is φ = 3444645600.

The previous prime is 11199720541. The next prime is 11199720577. The reversal of 11199720558 is 85502799111.

It is a super-3 number, since 3×11199720558³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169053 + ... + 225783.

It is an arithmetic number, because the mean of its divisors is an integer number (754138476).

Almost surely, 2^11199720558 is an apocalyptic number.

11199720558 is an abundant number, since it is smaller than the sum of its proper divisors (12932710674).

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

11199720558 is a wasteful number, since it uses less digits than its factorization.

11199720558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59280.

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 11199720558 in words is "eleven billion, one hundred ninety-nine million, seven hundred twenty thousand, five hundred fifty-eight".