166011051200 has 168 divisors, whose sum is σ = 422290305024. Its totient is φ = 64167552000.

The previous prime is 166011051187. The next prime is 166011051233. The reversal of 166011051200 is 2150110661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40223537 + ... + 40227663.

It is an arithmetic number, because the mean of its divisors is an integer number (2513632768).

Almost surely, 2^166011051200 is an apocalyptic number.

166011051200 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 166011051200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211145152512).

166011051200 is an abundant number, since it is smaller than the sum of its proper divisors (256279253824).

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

166011051200 is a wasteful number, since it uses less digits than its factorization.

166011051200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991 (or 4976 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 166011051200 its reverse (2150110661), we get a palindrome (168161161861).

The spelling of 166011051200 in words is "one hundred sixty-six billion, eleven million, fifty-one thousand, two hundred".