166611926208 has 448 divisors, whose sum is σ = 561631795200. Its totient is φ = 43306905600.

The previous prime is 166611926171. The next prime is 166611926213. The reversal of 166611926208 is 802629116661.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 63 ways as a sum of consecutive naturals, for example, 60783718 + ... + 60786458.

It is an arithmetic number, because the mean of its divisors is an integer number (1253642400).

Almost surely, 2^166611926208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166611926208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280815897600).

166611926208 is an abundant number, since it is smaller than the sum of its proper divisors (395019868992).

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

166611926208 is a wasteful number, since it uses less digits than its factorization.

166611926208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861 (or 2837 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 166611926208 in words is "one hundred sixty-six billion, six hundred eleven million, nine hundred twenty-six thousand, two hundred eight".