1168421656 has 16 divisors (see below), whose sum is σ = 2193047640. Its totient is φ = 583608960.

The previous prime is 1168421647. The next prime is 1168421677. The reversal of 1168421656 is 6561248611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66930 + ... + 82561.

Almost surely, 2^1168421656 is an apocalyptic number.

It is an amenable number.

1168421656 is a deficient number, since it is larger than the sum of its proper divisors (1024625984).

1168421656 is a wasteful number, since it uses less digits than its factorization.

1168421656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150474 (or 150470 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 1168421656 is about 34182.1833123632. The cubic root of 1168421656 is about 1053.2541991325.

The spelling of 1168421656 in words is "one billion, one hundred sixty-eight million, four hundred twenty-one thousand, six hundred fifty-six".