180406601 has 24 divisors (see below), whose sum is σ = 200970720. Its totient is φ = 161323520.

The previous prime is 180406591. The next prime is 180406609. The reversal of 180406601 is 106604081.

It is not a de Polignac number, because 180406601 - 2⁶ = 180406537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (180406609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1685990 + ... + 1686096.

It is an arithmetic number, because the mean of its divisors is an integer number (8373780).

Almost surely, 2^180406601 is an apocalyptic number.

It is an amenable number.

180406601 is a deficient number, since it is larger than the sum of its proper divisors (20564119).

180406601 is a wasteful number, since it uses less digits than its factorization.

180406601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 180406601 is about 13431.5524419182. The cubic root of 180406601 is about 565.0464378257.

The spelling of 180406601 in words is "one hundred eighty million, four hundred six thousand, six hundred one".