801117797181 has 16 divisors (see below), whose sum is σ = 1150428304704. Its totient is φ = 492950433024.

The previous prime is 801117797167. The next prime is 801117797189. The reversal of 801117797181 is 181797711108.

It is not a de Polignac number, because 801117797181 - 2³⁵ = 766758058813 is a prime.

It is a super-2 number, since 2×801117797181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801117797189) 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, 506316 + ... + 1363301.

It is an arithmetic number, because the mean of its divisors is an integer number (71901769044).

Almost surely, 2^801117797181 is an apocalyptic number.

It is an amenable number.

801117797181 is a deficient number, since it is larger than the sum of its proper divisors (349310507523).

801117797181 is a wasteful number, since it uses less digits than its factorization.

801117797181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880620.

The product of its (nonzero) digits is 197568, while the sum is 51.

The spelling of 801117797181 in words is "eight hundred one billion, one hundred seventeen million, seven hundred ninety-seven thousand, one hundred eighty-one".