166666759076160 has 672 divisors, whose sum is σ = 694186023847680. Its totient is φ = 35829130788864.

The previous prime is 166666759076099. The next prime is 166666759076243. The reversal of 166666759076160 is 61670957666661.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 488891046 + ... + 489231834.

It is an arithmetic number, because the mean of its divisors is an integer number (1033014916440).

Almost surely, 2^{166666759076160} is an apocalyptic number.

166666759076160 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 166666759076160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347093011923840).

166666759076160 is an abundant number, since it is smaller than the sum of its proper divisors (527519264771520).

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

166666759076160 is a wasteful number, since it uses less digits than its factorization.

166666759076160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342263 (or 342250 counting only the distinct ones).

The product of its (nonzero) digits is 617258880, while the sum is 72.

The spelling of 166666759076160 in words is "one hundred sixty-six trillion, six hundred sixty-six billion, seven hundred fifty-nine million, seventy-six thousand, one hundred sixty".