166513020 has 48 divisors (see below), whose sum is σ = 466814880. Its totient is φ = 44348416.

The previous prime is 166513007. The next prime is 166513021. The reversal of 166513020 is 20315661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166513021) 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, 76264 + ... + 78416.

It is an arithmetic number, because the mean of its divisors is an integer number (9725310).

Almost surely, 2^166513020 is an apocalyptic number.

166513020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166513020 is an abundant number, since it is smaller than the sum of its proper divisors (300301860).

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

166513020 is a wasteful number, since it uses less digits than its factorization.

166513020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454 (or 3452 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 166513020 is about 12903.9924054534. The cubic root of 166513020 is about 550.1520461176.

Adding to 166513020 its reverse (20315661), we get a palindrome (186828681).

The spelling of 166513020 in words is "one hundred sixty-six million, five hundred thirteen thousand, twenty".