1156928866 has 32 divisors (see below), whose sum is σ = 1820786688. Its totient is φ = 550675920.

The previous prime is 1156928821. The next prime is 1156928869. The reversal of 1156928866 is 6688296511.

It is not an unprimeable number, because it can be changed into a prime (1156928869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1970625 + ... + 1971211.

It is an arithmetic number, because the mean of its divisors is an integer number (56899584).

Almost surely, 2^1156928866 is an apocalyptic number.

1156928866 is a deficient number, since it is larger than the sum of its proper divisors (663857822).

1156928866 is a wasteful number, since it uses less digits than its factorization.

1156928866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its digits is 1244160, while the sum is 52.

The square root of 1156928866 is about 34013.6570512493. The cubic root of 1156928866 is about 1049.7894864442.

The spelling of 1156928866 in words is "one billion, one hundred fifty-six million, nine hundred twenty-eight thousand, eight hundred sixty-six".