536721115806 has 24 divisors (see below), whose sum is σ = 1173564523560. Its totient is φ = 177265688976.

The previous prime is 536721115783. The next prime is 536721115817. The reversal of 536721115806 is 608511127635.

536721115806 is a `hidden beast` number, since 5 + 3 + 67 + 2 + 1 + 1 + 1 + 580 + 6 = 666.

It is a congruent number.

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, 136777120 + ... + 136781043.

It is an arithmetic number, because the mean of its divisors is an integer number (48898521815).

Almost surely, 2^536721115806 is an apocalyptic number.

536721115806 is an abundant number, since it is smaller than the sum of its proper divisors (636843407754).

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

536721115806 is a wasteful number, since it uses less digits than its factorization.

536721115806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273558280 (or 273558277 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 536721115806 in words is "five hundred thirty-six billion, seven hundred twenty-one million, one hundred fifteen thousand, eight hundred six".