811766023266 has 64 divisors (see below), whose sum is σ = 1774477393920. Its totient is φ = 245524623360.

The previous prime is 811766023253. The next prime is 811766023267. The reversal of 811766023266 is 662320667118.

It is not an unprimeable number, because it can be changed into a prime (811766023267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112010455 + ... + 112017701.

It is an arithmetic number, because the mean of its divisors is an integer number (27726209280).

Almost surely, 2^811766023266 is an apocalyptic number.

811766023266 is an abundant number, since it is smaller than the sum of its proper divisors (962711370654).

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

811766023266 is a wasteful number, since it uses less digits than its factorization.

811766023266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10239.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 811766023266 in words is "eight hundred eleven billion, seven hundred sixty-six million, twenty-three thousand, two hundred sixty-six".