1151866128 has 240 divisors, whose sum is σ = 3664051200. Its totient is φ = 310286592.

The previous prime is 1151866123. The next prime is 1151866147. The reversal of 1151866128 is 8216681511.

It is not an unprimeable number, because it can be changed into a prime (1151866123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5788173 + ... + 5788371.

It is an arithmetic number, because the mean of its divisors is an integer number (15266880).

Almost surely, 2^1151866128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151866128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832025600).

1151866128 is an abundant number, since it is smaller than the sum of its proper divisors (2512185072).

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

1151866128 is a wasteful number, since it uses less digits than its factorization.

1151866128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 341 counting only the distinct ones).

The product of its digits is 23040, while the sum is 39.

The square root of 1151866128 is about 33939.1533188440. The cubic root of 1151866128 is about 1048.2559491786.

The spelling of 1151866128 in words is "one billion, one hundred fifty-one million, eight hundred sixty-six thousand, one hundred twenty-eight".