1115726166 has 12 divisors (see below), whose sum is σ = 2417406732. Its totient is φ = 371908716.

The previous prime is 1115726147. The next prime is 1115726263. The reversal of 1115726166 is 6616275111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115726166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30992376 + ... + 30992411.

It is an arithmetic number, because the mean of its divisors is an integer number (201450561).

Almost surely, 2^1115726166 is an apocalyptic number.

1115726166 is an abundant number, since it is smaller than the sum of its proper divisors (1301680566).

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

1115726166 is a wasteful number, since it uses less digits than its factorization.

1115726166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61984795 (or 61984792 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 1115726166 is about 33402.4874223463. The cubic root of 1115726166 is about 1037.1761926734.

The spelling of 1115726166 in words is "one billion, one hundred fifteen million, seven hundred twenty-six thousand, one hundred sixty-six".