820180006 has 8 divisors (see below), whose sum is σ = 1230719184. Its totient is φ = 409940280.

The previous prime is 820180003. The next prime is 820180057. The reversal of 820180006 is 600081028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820180003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67885 + ... + 79048.

It is an arithmetic number, because the mean of its divisors is an integer number (153839898).

Almost surely, 2^820180006 is an apocalyptic number.

820180006 is a deficient number, since it is larger than the sum of its proper divisors (410539178).

820180006 is a wasteful number, since it uses less digits than its factorization.

820180006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149726.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 820180006 is about 28638.7849951774. The cubic root of 820180006 is about 936.0586466711.

The spelling of 820180006 in words is "eight hundred twenty million, one hundred eighty thousand, six".