805613681632 has 96 divisors (see below), whose sum is σ = 1724515494912. Its totient is φ = 369028767744.

The previous prime is 805613681603. The next prime is 805613681659. The reversal of 805613681632 is 236186316508.

805613681632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3551658 + ... + 3771670.

It is an arithmetic number, because the mean of its divisors is an integer number (17963703072).

Almost surely, 2^805613681632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805613681632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862257747456).

805613681632 is an abundant number, since it is smaller than the sum of its proper divisors (918901813280).

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

805613681632 is a wasteful number, since it uses less digits than its factorization.

805613681632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220220 (or 220212 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 805613681632 in words is "eight hundred five billion, six hundred thirteen million, six hundred eighty-one thousand, six hundred thirty-two".