1161711152 has 20 divisors (see below), whose sum is σ = 2572360656. Its totient is φ = 497876160.

The previous prime is 1161711151. The next prime is 1161711169. The reversal of 1161711152 is 2511171611.

It is not an unprimeable number, because it can be changed into a prime (1161711151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5186099 + ... + 5186322.

Almost surely, 2^1161711152 is an apocalyptic number.

It is an amenable number.

1161711152 is an abundant number, since it is smaller than the sum of its proper divisors (1410649504).

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

1161711152 is a wasteful number, since it uses less digits than its factorization.

1161711152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10372436 (or 10372430 counting only the distinct ones).

The product of its digits is 420, while the sum is 26.

The square root of 1161711152 is about 34083.8840509705. The cubic root of 1161711152 is about 1051.2339693659.

Adding to 1161711152 its reverse (2511171611), we get a palindrome (3672882763).

The spelling of 1161711152 in words is "one billion, one hundred sixty-one million, seven hundred eleven thousand, one hundred fifty-two".