1151266660 has 12 divisors (see below), whose sum is σ = 2417660028. Its totient is φ = 460506656.

The previous prime is 1151266637. The next prime is 1151266661. The reversal of 1151266660 is 666621511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 828058176 + 323208484 = 28776^2 + 17978^2 .

It is not an unprimeable number, because it can be changed into a prime (1151266661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28781647 + ... + 28781686.

It is an arithmetic number, because the mean of its divisors is an integer number (201471669).

Almost surely, 2^1151266660 is an apocalyptic number.

1151266660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151266660 is an abundant number, since it is smaller than the sum of its proper divisors (1266393368).

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

1151266660 is a wasteful number, since it uses less digits than its factorization.

1151266660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57563342 (or 57563340 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1151266660 is about 33930.3206586675. The cubic root of 1151266660 is about 1048.0740689739.

The spelling of 1151266660 in words is "one billion, one hundred fifty-one million, two hundred sixty-six thousand, six hundred sixty".