811055558076 has 24 divisors (see below), whose sum is σ = 1893009546624. Its totient is φ = 270273770160.

The previous prime is 811055558051. The next prime is 811055558077. The reversal of 811055558076 is 670855550118.

It is a super-2 number, since 2×811055558076² (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 (811055558077) 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, 9717030 + ... + 9800141.

It is an arithmetic number, because the mean of its divisors is an integer number (78875397776).

Almost surely, 2^811055558076 is an apocalyptic number.

It is an amenable number.

811055558076 is an abundant number, since it is smaller than the sum of its proper divisors (1081953988548).

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

811055558076 is a wasteful number, since it uses less digits than its factorization.

811055558076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19520641 (or 19520639 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 51.

The spelling of 811055558076 in words is "eight hundred eleven billion, fifty-five million, five hundred fifty-eight thousand, seventy-six".