166683518350 has 12 divisors (see below), whose sum is σ = 310031344224. Its totient is φ = 66673407320.

The previous prime is 166683518317. The next prime is 166683518357. The reversal of 166683518350 is 53815386661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166683518357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1666835134 + ... + 1666835233.

It is an arithmetic number, because the mean of its divisors is an integer number (25835945352).

Almost surely, 2^166683518350 is an apocalyptic number.

166683518350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166683518350 is a deficient number, since it is larger than the sum of its proper divisors (143347825874).

166683518350 is a wasteful number, since it uses less digits than its factorization.

166683518350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333670379 (or 3333670374 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 166683518350 in words is "one hundred sixty-six billion, six hundred eighty-three million, five hundred eighteen thousand, three hundred fifty".