806521885100 has 36 divisors (see below), whose sum is σ = 1751132258904. Its totient is φ = 322428151680.

The previous prime is 806521885069. The next prime is 806521885151. The reversal of 806521885100 is 1588125608.

It is a super-2 number, since 2×806521885100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2077937 + ... + 2435336.

Almost surely, 2^806521885100 is an apocalyptic number.

It is an amenable number.

806521885100 is an abundant number, since it is smaller than the sum of its proper divisors (944610373804).

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

806521885100 is a wasteful number, since it uses less digits than its factorization.

806521885100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515074 (or 4515067 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 806521885100 in words is "eight hundred six billion, five hundred twenty-one million, eight hundred eighty-five thousand, one hundred".