11100550550 has 48 divisors (see below), whose sum is σ = 21067691760. Its totient is φ = 4350003840.

The previous prime is 11100550547. The next prime is 11100550613. The reversal of 11100550550 is 5505500111.

It is a happy number.

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, 2045741 + ... + 2051159.

It is an arithmetic number, because the mean of its divisors is an integer number (438910245).

Almost surely, 2^11100550550 is an apocalyptic number.

11100550550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11100550550 is a deficient number, since it is larger than the sum of its proper divisors (9967141210).

11100550550 is a wasteful number, since it uses less digits than its factorization.

11100550550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257 (or 6252 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

The spelling of 11100550550 in words is "eleven billion, one hundred million, five hundred fifty thousand, five hundred fifty".