166640620300000 has 576 divisors, whose sum is σ = 516217057993728. Its totient is φ = 51435417600000.

The previous prime is 166640620299997. The next prime is 166640620300043. The reversal of 166640620300000 is 3026046661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 792994944 + ... + 793205056.

It is an arithmetic number, because the mean of its divisors is an integer number (896210170128).

Almost surely, 2^{166640620300000} is an apocalyptic number.

166640620300000 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 166640620300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258108528996864).

166640620300000 is an abundant number, since it is smaller than the sum of its proper divisors (349576437693728).

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

166640620300000 is a wasteful number, since it uses less digits than its factorization.

166640620300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210269 (or 210241 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 166640620300000 its reverse (3026046661), we get a palindrome (166643646346661).

The spelling of 166640620300000 in words is "one hundred sixty-six trillion, six hundred forty billion, six hundred twenty million, three hundred thousand".