166950863 has 4 divisors (see below), whose sum is σ = 176771520. Its totient is φ = 157130208.

The previous prime is 166950809. The next prime is 166950877. The reversal of 166950863 is 368059661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166950863 - 2⁶ = 166950799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166250863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4910303 + ... + 4910336.

It is an arithmetic number, because the mean of its divisors is an integer number (44192880).

Almost surely, 2^166950863 is an apocalyptic number.

166950863 is a deficient number, since it is larger than the sum of its proper divisors (9820657).

166950863 is an equidigital number, since it uses as much as digits as its factorization.

166950863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9820656.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 166950863 is about 12920.9466758438. The cubic root of 166950863 is about 550.6338290640.

The spelling of 166950863 in words is "one hundred sixty-six million, nine hundred fifty thousand, eight hundred sixty-three".