1161625768 has 16 divisors (see below), whose sum is σ = 2182236660. Its totient is φ = 579696000.

The previous prime is 1161625763. The next prime is 1161625771. The reversal of 1161625768 is 8675261611.

It can be written as a sum of positive squares in 2 ways, for example, as 1117030084 + 44595684 = 33422^2 + 6678^2 .

It is not an unprimeable number, because it can be changed into a prime (1161625763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135183 + ... + 143518.

Almost surely, 2^1161625768 is an apocalyptic number.

It is an amenable number.

1161625768 is a deficient number, since it is larger than the sum of its proper divisors (1020610892).

1161625768 is a wasteful number, since it uses less digits than its factorization.

1161625768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279228 (or 279224 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 1161625768 is about 34082.6314711760. The cubic root of 1161625768 is about 1051.2082140365.

The spelling of 1161625768 in words is "one billion, one hundred sixty-one million, six hundred twenty-five thousand, seven hundred sixty-eight".