1166355956 has 6 divisors (see below), whose sum is σ = 2041122930. Its totient is φ = 583177976.

The previous prime is 1166355943. The next prime is 1166355977. The reversal of 1166355956 is 6595536611.

It can be written as a sum of positive squares in only one way, i.e., 1109955856 + 56400100 = 33316^2 + 7510^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1166355956.

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, 145794491 + ... + 145794498.

It is an arithmetic number, because the mean of its divisors is an integer number (340187155).

Almost surely, 2^1166355956 is an apocalyptic number.

It is an amenable number.

1166355956 is a deficient number, since it is larger than the sum of its proper divisors (874766974).

1166355956 is a wasteful number, since it uses less digits than its factorization.

1166355956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291588993 (or 291588991 counting only the distinct ones).

The product of its digits is 729000, while the sum is 47.

The square root of 1166355956 is about 34151.9539118921. The cubic root of 1166355956 is about 1052.6331360593.

The spelling of 1166355956 in words is "one billion, one hundred sixty-six million, three hundred fifty-five thousand, nine hundred fifty-six".