166971852 has 36 divisors (see below), whose sum is σ = 422472960. Its totient is φ = 55603872.

The previous prime is 166971811. The next prime is 166971863. The reversal of 166971852 is 258179661.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 166971798 and 166971807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58474 + ... + 61262.

It is an arithmetic number, because the mean of its divisors is an integer number (11735360).

Almost surely, 2^166971852 is an apocalyptic number.

166971852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166971852 is an abundant number, since it is smaller than the sum of its proper divisors (255501108).

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

166971852 is a wasteful number, since it uses less digits than its factorization.

166971852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4457 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 166971852 is about 12921.7588586074. The cubic root of 166971852 is about 550.6569032567.

The spelling of 166971852 in words is "one hundred sixty-six million, nine hundred seventy-one thousand, eight hundred fifty-two".