1165546556 has 12 divisors (see below), whose sum is σ = 2105503680. Its totient is φ = 563974080.

The previous prime is 1165546517. The next prime is 1165546573. The reversal of 1165546556 is 6556455611.

It is a happy number.

It is a super-2 number, since 2×1165546556² = 2716997548406922272, 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 3 ways as a sum of consecutive naturals, for example, 4699661 + ... + 4699908.

It is an arithmetic number, because the mean of its divisors is an integer number (175458640).

Almost surely, 2^1165546556 is an apocalyptic number.

It is an amenable number.

1165546556 is a deficient number, since it is larger than the sum of its proper divisors (939957124).

1165546556 is a wasteful number, since it uses less digits than its factorization.

1165546556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9399604 (or 9399602 counting only the distinct ones).

The product of its digits is 540000, while the sum is 44.

The square root of 1165546556 is about 34140.1018744819. The cubic root of 1165546556 is about 1052.3895859333.

The spelling of 1165546556 in words is "one billion, one hundred sixty-five million, five hundred forty-six thousand, five hundred fifty-six".