661080333 has 16 divisors (see below), whose sum is σ = 901046016. Its totient is φ = 430935360.

The previous prime is 661080311. The next prime is 661080349. The reversal of 661080333 is 333080166.

661080333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 661080333 - 2¹² = 661076237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 661080333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661080353) 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, 244135 + ... + 246827.

It is an arithmetic number, because the mean of its divisors is an integer number (56315376).

Almost surely, 2^661080333 is an apocalyptic number.

It is an amenable number.

661080333 is a deficient number, since it is larger than the sum of its proper divisors (239965683).

661080333 is a wasteful number, since it uses less digits than its factorization.

661080333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 661080333 is about 25711.4825126829. The cubic root of 661080333 is about 871.1335613662.

The spelling of 661080333 in words is "six hundred sixty-one million, eighty thousand, three hundred thirty-three".