1768336660 has 12 divisors (see below), whose sum is σ = 3713507028. Its totient is φ = 707334656.

The previous prime is 1768336649. The next prime is 1768336667. The reversal of 1768336660 is 666338671.

It can be written as a sum of positive squares in 2 ways, for example, as 337530384 + 1430806276 = 18372^2 + 37826^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1768336660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768336667) 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, 44208397 + ... + 44208436.

It is an arithmetic number, because the mean of its divisors is an integer number (309458919).

Almost surely, 2^1768336660 is an apocalyptic number.

1768336660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1768336660 is an abundant number, since it is smaller than the sum of its proper divisors (1945170368).

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

1768336660 is a wasteful number, since it uses less digits than its factorization.

1768336660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88416842 (or 88416840 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 1768336660 is about 42051.5952134993. The cubic root of 1768336660 is about 1209.2654649865.

The spelling of 1768336660 in words is "one billion, seven hundred sixty-eight million, three hundred thirty-six thousand, six hundred sixty".