1161650688 has 160 divisors (see below), whose sum is σ = 3402907200. Its totient is φ = 349224960.

The previous prime is 1161650687. The next prime is 1161650717. The reversal of 1161650688 is 8860561611.

It is not an unprimeable number, because it can be changed into a prime (1161650687) 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 15 ways as a sum of consecutive naturals, for example, 3328338 + ... + 3328686.

It is an arithmetic number, because the mean of its divisors is an integer number (21268170).

Almost surely, 2^1161650688 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 1161650688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701453600).

1161650688 is an abundant number, since it is smaller than the sum of its proper divisors (2241256512).

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

1161650688 is a wasteful number, since it uses less digits than its factorization.

1161650688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1161650688 is about 34082.9970513158. The cubic root of 1161650688 is about 1051.2157310648.

The spelling of 1161650688 in words is "one billion, one hundred sixty-one million, six hundred fifty thousand, six hundred eighty-eight".