1161500116 has 72 divisors (see below), whose sum is σ = 2408683200. Its totient is φ = 488581632.

The previous prime is 1161500099. The next prime is 1161500117. The reversal of 1161500116 is 6110051611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161500117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3783235 + ... + 3783541.

Almost surely, 2^1161500116 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 1161500116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204341600).

1161500116 is an abundant number, since it is smaller than the sum of its proper divisors (1247183084).

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

1161500116 is a wasteful number, since it uses less digits than its factorization.

1161500116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 1161500116 is about 34080.7880777426. The cubic root of 1161500116 is about 1051.1703099251.

Adding to 1161500116 its reverse (6110051611), we get a palindrome (7271551727).

The spelling of 1161500116 in words is "one billion, one hundred sixty-one million, five hundred thousand, one hundred sixteen".