1161751296 has 144 divisors (see below), whose sum is σ = 3200282624. Its totient is φ = 373911552.

The previous prime is 1161751291. The next prime is 1161751303. The reversal of 1161751296 is 6921571611.

It is not an unprimeable number, because it can be changed into a prime (1161751291) 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, 4193910 + ... + 4194186.

Almost surely, 2^1161751296 is an apocalyptic number.

1161751296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161751296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600141312).

1161751296 is an abundant number, since it is smaller than the sum of its proper divisors (2038531328).

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

1161751296 is a wasteful number, since it uses less digits than its factorization.

1161751296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 452 counting only the distinct ones).

The product of its digits is 22680, while the sum is 39.

The square root of 1161751296 is about 34084.4729459031. The cubic root of 1161751296 is about 1051.2460780128.

The spelling of 1161751296 in words is "one billion, one hundred sixty-one million, seven hundred fifty-one thousand, two hundred ninety-six".