1159687680 has 160 divisors (see below), whose sum is σ = 3827755008. Its totient is φ = 299212800.

The previous prime is 1159687663. The next prime is 1159687723. The reversal of 1159687680 is 867869511.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235645 + ... + 240515.

Almost surely, 2^1159687680 is an apocalyptic number.

1159687680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159687680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1913877504).

1159687680 is an abundant number, since it is smaller than the sum of its proper divisors (2668067328).

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

1159687680 is an equidigital number, since it uses as much as digits as its factorization.

1159687680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928 (or 4912 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 1159687680 is about 34054.1874077183. The cubic root of 1159687680 is about 1050.6232671513.

The spelling of 1159687680 in words is "one billion, one hundred fifty-nine million, six hundred eighty-seven thousand, six hundred eighty".