16555106100 has 288 divisors, whose sum is σ = 54127535616. Its totient is φ = 3879014400.

The previous prime is 16555106059. The next prime is 16555106101. The reversal of 16555106100 is 160155561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16555106101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6780880 + ... + 6783320.

It is an arithmetic number, because the mean of its divisors is an integer number (187942832).

Almost surely, 2^16555106100 is an apocalyptic number.

16555106100 is a gapful number since it is divisible by the number (10) 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 16555106100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27063767808).

16555106100 is an abundant number, since it is smaller than the sum of its proper divisors (37572429516).

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

16555106100 is a wasteful number, since it uses less digits than its factorization.

16555106100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555 (or 2548 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 16555106100 in words is "sixteen billion, five hundred fifty-five million, one hundred six thousand, one hundred".