803945664080 has 40 divisors (see below), whose sum is σ = 2012956261512. Its totient is φ = 296841475584.

The previous prime is 803945664059. The next prime is 803945664083. The reversal of 803945664080 is 80466549308.

It can be written as a sum of positive squares in 4 ways, for example, as 12173150224 + 791772513856 = 110332^2 + 889816^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803945664083) 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, 386511299 + ... + 386513378.

Almost surely, 2^803945664080 is an apocalyptic number.

803945664080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

803945664080 is an abundant number, since it is smaller than the sum of its proper divisors (1209010597432).

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

803945664080 is a wasteful number, since it uses less digits than its factorization.

803945664080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773024703 (or 773024697 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 803945664080 in words is "eight hundred three billion, nine hundred forty-five million, six hundred sixty-four thousand, eighty".