551001101100 has 36 divisors (see below), whose sum is σ = 1594229853384. Its totient is φ = 146933626880.

The previous prime is 551001101047. The next prime is 551001101111. The reversal of 551001101100 is 1101100155.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 551001101100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918334869 + ... + 918335468.

It is an arithmetic number, because the mean of its divisors is an integer number (44284162594).

Almost surely, 2^551001101100 is an apocalyptic number.

551001101100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551001101100 is an abundant number, since it is smaller than the sum of its proper divisors (1043228752284).

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

551001101100 is a wasteful number, since it uses less digits than its factorization.

551001101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836670354 (or 1836670347 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 551001101100 its reverse (1101100155), we get a palindrome (552102201255).

The spelling of 551001101100 in words is "five hundred fifty-one billion, one million, one hundred one thousand, one hundred".