801320417720 has 32 divisors (see below), whose sum is σ = 1909028055600. Its totient is φ = 301673568768.

The previous prime is 801320417701. The next prime is 801320417761. The reversal of 801320417720 is 27714023108.

It is a super-2 number, since 2×801320417720² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589205510 + ... + 589206869.

Almost surely, 2^801320417720 is an apocalyptic number.

It is an amenable number.

801320417720 is an abundant number, since it is smaller than the sum of its proper divisors (1107707637880).

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

801320417720 is a wasteful number, since it uses less digits than its factorization.

801320417720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178412407 (or 1178412403 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 801320417720 in words is "eight hundred one billion, three hundred twenty million, four hundred seventeen thousand, seven hundred twenty".