166863050830 has 32 divisors (see below), whose sum is σ = 345963995136. Its totient is φ = 56759711904.

The previous prime is 166863050821. The next prime is 166863050839. The reversal of 166863050830 is 38050368661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (166863050821) and next prime (166863050839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166863050839) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9375984 + ... + 9393763.

It is an arithmetic number, because the mean of its divisors is an integer number (10811374848).

Almost surely, 2^166863050830 is an apocalyptic number.

166863050830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166863050830 is an abundant number, since it is smaller than the sum of its proper divisors (179100944306).

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

166863050830 is a wasteful number, since it uses less digits than its factorization.

166863050830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18769888.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 166863050830 in words is "one hundred sixty-six billion, eight hundred sixty-three million, fifty thousand, eight hundred thirty".