6733400660 has 36 divisors (see below), whose sum is σ = 16448738292. Its totient is φ = 2308594176.

The previous prime is 6733400587. The next prime is 6733400701. The reversal of 6733400660 is 660043376.

It can be written as a sum of positive squares in 2 ways, for example, as 1173610564 + 5559790096 = 34258^2 + 74564^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 6733400660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3434429 + ... + 3436388.

It is an arithmetic number, because the mean of its divisors is an integer number (456909397).

Almost surely, 2^6733400660 is an apocalyptic number.

It is an amenable number.

6733400660 is an abundant number, since it is smaller than the sum of its proper divisors (9715337632).

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

6733400660 is a wasteful number, since it uses less digits than its factorization.

6733400660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6870840 (or 6870831 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 6733400660 is about 82057.3010767476. The cubic root of 6733400660 is about 1888.3311285565.

The spelling of 6733400660 in words is "six billion, seven hundred thirty-three million, four hundred thousand, six hundred sixty".