1161327760 has 40 divisors (see below), whose sum is σ = 2744362296. Its totient is φ = 456913920.

The previous prime is 1161327757. The next prime is 1161327833. The reversal of 1161327760 is 677231611.

It can be written as a sum of positive squares in 4 ways, for example, as 93083904 + 1068243856 = 9648^2 + 32684^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1161327760² = 2697364332293235200, which contains 22 as substring.

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, 114109 + ... + 123868.

Almost surely, 2^1161327760 is an apocalyptic number.

1161327760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161327760 is an abundant number, since it is smaller than the sum of its proper divisors (1583034536).

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

1161327760 is a wasteful number, since it uses less digits than its factorization.

1161327760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238051 (or 238045 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 1161327760 is about 34078.2593452189. The cubic root of 1161327760 is about 1051.1183126646.

The spelling of 1161327760 in words is "one billion, one hundred sixty-one million, three hundred twenty-seven thousand, seven hundred sixty".