1165550126 has 16 divisors (see below), whose sum is σ = 1890323568. Its totient is φ = 535800000.

The previous prime is 1165550123. The next prime is 1165550137. The reversal of 1165550126 is 6210555611.

It is a junction number, because it is equal to n+sod(n) for n = 1165550092 and 1165550101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165550123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82775 + ... + 95826.

It is an arithmetic number, because the mean of its divisors is an integer number (118145223).

Almost surely, 2^1165550126 is an apocalyptic number.

1165550126 is a deficient number, since it is larger than the sum of its proper divisors (724773442).

1165550126 is a wasteful number, since it uses less digits than its factorization.

1165550126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178867.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 1165550126 is about 34140.1541589958. The cubic root of 1165550126 is about 1052.3906604011.

The spelling of 1165550126 in words is "one billion, one hundred sixty-five million, five hundred fifty thousand, one hundred twenty-six".