166304880000 has 1280 divisors, whose sum is σ = 743342054400. Its totient is φ = 35721216000.

The previous prime is 166304879959. The next prime is 166304880023. The reversal of 166304880000 is 88403661.

It is a happy number.

166304880000 is a `hidden beast` number, since 16 + 630 + 4 + 8 + 8 + 0 + 0 + 0 + 0 = 666.

It is a super-2 number, since 2×166304880000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 257039677 + ... + 257040323.

It is an arithmetic number, because the mean of its divisors is an integer number (580735980).

Almost surely, 2^166304880000 is an apocalyptic number.

166304880000 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 166304880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371671027200).

166304880000 is an abundant number, since it is smaller than the sum of its proper divisors (577037174400).

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

166304880000 is an equidigital number, since it uses as much as digits as its factorization.

166304880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 166304880000 in words is "one hundred sixty-six billion, three hundred four million, eight hundred eighty thousand".