1166642126 has 16 divisors (see below), whose sum is σ = 1930542768. Its totient is φ = 525316800.

The previous prime is 1166642111. The next prime is 1166642149. The reversal of 1166642126 is 6212466611.

It is a super-2 number, since 2×1166642126² = 2722107700315599752, which 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 7 ways as a sum of consecutive naturals, for example, 546140 + ... + 548271.

It is an arithmetic number, because the mean of its divisors is an integer number (120658923).

Almost surely, 2^1166642126 is an apocalyptic number.

1166642126 is a deficient number, since it is larger than the sum of its proper divisors (763900642).

1166642126 is a wasteful number, since it uses less digits than its factorization.

1166642126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094467.

The product of its digits is 20736, while the sum is 35.

The square root of 1166642126 is about 34156.1433127337. The cubic root of 1166642126 is about 1052.7192182398.

The spelling of 1166642126 in words is "one billion, one hundred sixty-six million, six hundred forty-two thousand, one hundred twenty-six".