166601916030 has 32 divisors (see below), whose sum is σ = 436194108288. Its totient is φ = 40388343200.

The previous prime is 166601916001. The next prime is 166601916031. The reversal of 166601916030 is 30619106661.

It is a self number, because there is not a number n which added to its sum of digits gives 166601916030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166601916031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252426816 + ... + 252427475.

It is an arithmetic number, because the mean of its divisors is an integer number (13631065884).

Almost surely, 2^166601916030 is an apocalyptic number.

166601916030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166601916030 is an abundant number, since it is smaller than the sum of its proper divisors (269592192258).

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

166601916030 is a wasteful number, since it uses less digits than its factorization.

166601916030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504854312.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 166601916030 in words is "one hundred sixty-six billion, six hundred one million, nine hundred sixteen thousand, thirty".