1161115552 has 48 divisors (see below), whose sum is σ = 2331104832. Its totient is φ = 569198080.

The previous prime is 1161115547. The next prime is 1161115577. The reversal of 1161115552 is 2555111611.

It is a self number, because there is not a number n which added to its sum of digits gives 1161115552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362277 + ... + 365467.

It is an arithmetic number, because the mean of its divisors is an integer number (48564684).

Almost surely, 2^1161115552 is an apocalyptic number.

It is an amenable number.

1161115552 is an abundant number, since it is smaller than the sum of its proper divisors (1169989280).

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

1161115552 is a wasteful number, since it uses less digits than its factorization.

1161115552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421 (or 3413 counting only the distinct ones).

The product of its digits is 1500, while the sum is 28.

The square root of 1161115552 is about 34075.1456636652. The cubic root of 1161115552 is about 1051.0542855771.

The spelling of 1161115552 in words is "one billion, one hundred sixty-one million, one hundred fifteen thousand, five hundred fifty-two".