1158320437860 has 192 divisors, whose sum is σ = 3350197154304. Its totient is φ = 298805760000.

The previous prime is 1158320437847. The next prime is 1158320437867. The reversal of 1158320437860 is 687340238511.

It is not an unprimeable number, because it can be changed into a prime (1158320437867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 350898210 + ... + 350901510.

It is an arithmetic number, because the mean of its divisors is an integer number (17448943512).

Almost surely, 2^{1158320437860} is an apocalyptic number.

1158320437860 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 1158320437860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675098577152).

1158320437860 is an abundant number, since it is smaller than the sum of its proper divisors (2191876716444).

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

1158320437860 is a wasteful number, since it uses less digits than its factorization.

1158320437860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214 (or 4212 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 1158320437860 in words is "one trillion, one hundred fifty-eight billion, three hundred twenty million, four hundred thirty-seven thousand, eight hundred sixty".