166852818 has 32 divisors (see below), whose sum is σ = 404493120. Its totient is φ = 50561280.

The previous prime is 166852817. The next prime is 166852871. The reversal of 166852818 is 818258661.

It is a super-2 number, since 2×166852818² = 55679725749082248, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166852817) 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, 139855 + ... + 141042.

It is an arithmetic number, because the mean of its divisors is an integer number (12640410).

Almost surely, 2^166852818 is an apocalyptic number.

166852818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

166852818 is an abundant number, since it is smaller than the sum of its proper divisors (237640302).

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

166852818 is a wasteful number, since it uses less digits than its factorization.

166852818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280919 (or 280913 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 166852818 is about 12917.1520855024. The cubic root of 166852818 is about 550.5260179701.

It can be divided in two parts, 16685 and 2818, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 166852818 in words is "one hundred sixty-six million, eight hundred fifty-two thousand, eight hundred eighteen".