1170955866 has 16 divisors (see below), whose sum is σ = 2370128544. Its totient is φ = 385615824.

The previous prime is 1170955853. The next prime is 1170955873. The reversal of 1170955866 is 6685590711.

It is a super-2 number, since 2×1170955866² = 2742275280239619912, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175161 + ... + 1176156.

It is an arithmetic number, because the mean of its divisors is an integer number (148133034).

Almost surely, 2^1170955866 is an apocalyptic number.

1170955866 is an abundant number, since it is smaller than the sum of its proper divisors (1199172678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1170955866 is a wasteful number, since it uses less digits than its factorization.

1170955866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351405.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 1170955866 is about 34219.2323993394. The cubic root of 1170955866 is about 1054.0151230387.

It can be divided in two parts, 1170 and 955866, that added together give a triangular number (957036 = T₁₃₈₃).

The spelling of 1170955866 in words is "one billion, one hundred seventy million, nine hundred fifty-five thousand, eight hundred sixty-six".