105715720206 has 48 divisors (see below), whose sum is σ = 241235139600. Its totient is φ = 33366034944.

The previous prime is 105715720193. The next prime is 105715720247. The reversal of 105715720206 is 602027517501.

105715720206 is a `hidden beast` number, since 10 + 5 + 71 + 572 + 0 + 2 + 0 + 6 = 666.

It is a super-2 number, since 2×105715720206² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564220 + ... + 727856.

It is an arithmetic number, because the mean of its divisors is an integer number (5025732075).

Almost surely, 2^105715720206 is an apocalyptic number.

105715720206 is an abundant number, since it is smaller than the sum of its proper divisors (135519419394).

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

105715720206 is a wasteful number, since it uses less digits than its factorization.

105715720206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165553 (or 165550 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 105715720206 in words is "one hundred five billion, seven hundred fifteen million, seven hundred twenty thousand, two hundred six".