166328429610 has 128 divisors (see below), whose sum is σ = 472289771520. Its totient is φ = 36680281344.

The previous prime is 166328429569. The next prime is 166328429623. The reversal of 166328429610 is 16924823661.

It is a self number, because there is not a number n which added to its sum of digits gives 166328429610.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9046647 + ... + 9065013.

It is an arithmetic number, because the mean of its divisors is an integer number (3689763840).

Almost surely, 2^166328429610 is an apocalyptic number.

166328429610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166328429610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236144885760).

166328429610 is an abundant number, since it is smaller than the sum of its proper divisors (305961341910).

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

166328429610 is a wasteful number, since it uses less digits than its factorization.

166328429610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19900.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 166328429610 in words is "one hundred sixty-six billion, three hundred twenty-eight million, four hundred twenty-nine thousand, six hundred ten".