8101805532 has 24 divisors (see below), whose sum is σ = 20016225936. Its totient is φ = 2541742848.

The previous prime is 8101805513. The next prime is 8101805659. The reversal of 8101805532 is 2355081018.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8101805493 and 8101805502.

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, 19857163 + ... + 19857570.

It is an arithmetic number, because the mean of its divisors is an integer number (834009414).

Almost surely, 2^8101805532 is an apocalyptic number.

It is an amenable number.

8101805532 is an abundant number, since it is smaller than the sum of its proper divisors (11914420404).

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

8101805532 is a wasteful number, since it uses less digits than its factorization.

8101805532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39714757 (or 39714755 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 8101805532 is about 90010.0301744200. The cubic root of 8101805532 is about 2008.4480592363.

The spelling of 8101805532 in words is "eight billion, one hundred one million, eight hundred five thousand, five hundred thirty-two".