166683516852 has 48 divisors (see below), whose sum is σ = 411900455232. Its totient is φ = 52280916480.

The previous prime is 166683516803. The next prime is 166683516859. The reversal of 166683516852 is 258615386661.

It is a junction number, because it is equal to n+sod(n) for n = 166683516792 and 166683516801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166683516859) 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, 823402 + ... + 1005662.

It is an arithmetic number, because the mean of its divisors is an integer number (8581259484).

Almost surely, 2^166683516852 is an apocalyptic number.

166683516852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166683516852 is an abundant number, since it is smaller than the sum of its proper divisors (245216938380).

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

166683516852 is a wasteful number, since it uses less digits than its factorization.

166683516852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186768 (or 186766 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 57.

The spelling of 166683516852 in words is "one hundred sixty-six billion, six hundred eighty-three million, five hundred sixteen thousand, eight hundred fifty-two".