55111616100 has 108 divisors (see below), whose sum is σ = 172846010064. Its totient is φ = 14687778240.

The previous prime is 55111616099. The next prime is 55111616101. The reversal of 55111616100 is 161611155.

55111616100 is a `hidden beast` number, since 551 + 1 + 1 + 6 + 1 + 6 + 100 = 666.

It is an interprime number because it is at equal distance from previous prime (55111616099) and next prime (55111616101).

It is not an unprimeable number, because it can be changed into a prime (55111616101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1591167 + ... + 1625433.

Almost surely, 2^55111616100 is an apocalyptic number.

55111616100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55111616100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86423005032).

55111616100 is an abundant number, since it is smaller than the sum of its proper divisors (117734393964).

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

55111616100 is a wasteful number, since it uses less digits than its factorization.

55111616100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36074 (or 36064 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 55111616100 in words is "fifty-five billion, one hundred eleven million, six hundred sixteen thousand, one hundred".