1171656056 has 8 divisors (see below), whose sum is σ = 2196855120. Its totient is φ = 585828024.

The previous prime is 1171656047. The next prime is 1171656077. The reversal of 1171656056 is 6506561711.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1171656056² = 2745555827122950272, 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 as a sum of consecutive naturals, namely, 73228496 + ... + 73228511.

It is an arithmetic number, because the mean of its divisors is an integer number (274606890).

Almost surely, 2^1171656056 is an apocalyptic number.

It is an amenable number.

1171656056 is a deficient number, since it is larger than the sum of its proper divisors (1025199064).

1171656056 is a wasteful number, since it uses less digits than its factorization.

1171656056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146457013 (or 146457009 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1171656056 is about 34229.4618128886. The cubic root of 1171656056 is about 1054.2251690412.

The spelling of 1171656056 in words is "one billion, one hundred seventy-one million, six hundred fifty-six thousand, fifty-six".