180485656 has 32 divisors (see below), whose sum is σ = 365747760. Its totient is φ = 83002752.

The previous prime is 180485653. The next prime is 180485671. The reversal of 180485656 is 656584081.

180485656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180485653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27511 + ... + 33433.

Almost surely, 2^180485656 is an apocalyptic number.

It is an amenable number.

180485656 is an abundant number, since it is smaller than the sum of its proper divisors (185262104).

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

180485656 is a wasteful number, since it uses less digits than its factorization.

180485656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235 (or 6231 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 180485656 is about 13434.4950035347. The cubic root of 180485656 is about 565.1289610864.

The spelling of 180485656 in words is "one hundred eighty million, four hundred eighty-five thousand, six hundred fifty-six".