166286621160 has 384 divisors, whose sum is σ = 601474723200. Its totient is φ = 39504568320.

The previous prime is 166286621131. The next prime is 166286621197. The reversal of 166286621160 is 61126682661.

166286621160 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 8 + 6 + 621 + 16 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 47118276 + ... + 47121804.

It is an arithmetic number, because the mean of its divisors is an integer number (1566340425).

Almost surely, 2^166286621160 is an apocalyptic number.

166286621160 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 166286621160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300737361600).

166286621160 is an abundant number, since it is smaller than the sum of its proper divisors (435188102040).

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

166286621160 is a wasteful number, since it uses less digits than its factorization.

166286621160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793 (or 3786 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 166286621160 in words is "one hundred sixty-six billion, two hundred eighty-six million, six hundred twenty-one thousand, one hundred sixty".