166206620600 has 96 divisors (see below), whose sum is σ = 389256150000. Its totient is φ = 65997987840.

The previous prime is 166206620551. The next prime is 166206620617. The reversal of 166206620600 is 6026602661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19257086 + ... + 19265714.

Almost surely, 2^166206620600 is an apocalyptic number.

166206620600 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 166206620600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194628075000).

166206620600 is an abundant number, since it is smaller than the sum of its proper divisors (223049529400).

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

166206620600 is a wasteful number, since it uses less digits than its factorization.

166206620600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337 (or 9328 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 166206620600 in words is "one hundred sixty-six billion, two hundred six million, six hundred twenty thousand, six hundred".