11420555500 has 24 divisors (see below), whose sum is σ = 24942494304. Its totient is φ = 4568222000.

The previous prime is 11420555491. The next prime is 11420555533. The reversal of 11420555500 is 555502411.

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, 11420056 + ... + 11421055.

It is an arithmetic number, because the mean of its divisors is an integer number (1039270596).

Almost surely, 2^11420555500 is an apocalyptic number.

11420555500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11420555500 is an abundant number, since it is smaller than the sum of its proper divisors (13521938804).

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

11420555500 is a wasteful number, since it uses less digits than its factorization.

11420555500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22841130 (or 22841118 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 11420555500 in words is "eleven billion, four hundred twenty million, five hundred fifty-five thousand, five hundred".