55155066100 has 18 divisors (see below), whose sum is σ = 119686493654. Its totient is φ = 22062026400.

The previous prime is 55155066097. The next prime is 55155066133. The reversal of 55155066100 is 166055155.

It can be written as a sum of positive squares in 3 ways, for example, as 13613288976 + 41541777124 = 116676^2 + 203818^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275775231 + ... + 275775430.

Almost surely, 2^55155066100 is an apocalyptic number.

55155066100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55155066100 is an abundant number, since it is smaller than the sum of its proper divisors (64531427554).

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

55155066100 is a wasteful number, since it uses less digits than its factorization.

55155066100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551550675 (or 551550668 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 55155066100 in words is "fifty-five billion, one hundred fifty-five million, sixty-six thousand, one hundred".