166115302100 has 144 divisors (see below), whose sum is σ = 396298593600. Its totient is φ = 59937408000.

The previous prime is 166115302081. The next prime is 166115302159. The reversal of 166115302100 is 1203511661.

It is a self number, because there is not a number n which added to its sum of digits gives 166115302100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147134336 + ... + 147135464.

Almost surely, 2^166115302100 is an apocalyptic number.

166115302100 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 166115302100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198149296800).

166115302100 is an abundant number, since it is smaller than the sum of its proper divisors (230183291500).

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

166115302100 is a wasteful number, since it uses less digits than its factorization.

166115302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074 (or 2067 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 166115302100 its reverse (1203511661), we get a palindrome (167318813761).

The spelling of 166115302100 in words is "one hundred sixty-six billion, one hundred fifteen million, three hundred two thousand, one hundred".