1159538680 has 32 divisors (see below), whose sum is σ = 2609996400. Its totient is φ = 463631616.

The previous prime is 1159538657. The next prime is 1159538687. The reversal of 1159538680 is 868359511.

It is a super-2 number, since 2×1159538680² = 2689059900832284800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1159538680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159538687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145684 + ... + 153436.

Almost surely, 2^1159538680 is an apocalyptic number.

1159538680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1159538680 is an abundant number, since it is smaller than the sum of its proper divisors (1450457720).

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

1159538680 is a wasteful number, since it uses less digits than its factorization.

1159538680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11503 (or 11499 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 1159538680 is about 34051.9996475978. Note that the first 3 decimals coincide. The cubic root of 1159538680 is about 1050.5782695269.

The spelling of 1159538680 in words is "one billion, one hundred fifty-nine million, five hundred thirty-eight thousand, six hundred eighty".