1158699812640 has 192 divisors, whose sum is σ = 3754456054272. Its totient is φ = 300198297600.

The previous prime is 1158699812603. The next prime is 1158699812657. The reversal of 1158699812640 is 462189968511.

It is a super-2 number, since 2×1158699812640² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4620729 + ... + 4865031.

It is an arithmetic number, because the mean of its divisors is an integer number (19554458616).

Almost surely, 2^{1158699812640} is an apocalyptic number.

1158699812640 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 1158699812640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1877228027136).

1158699812640 is an abundant number, since it is smaller than the sum of its proper divisors (2595756241632).

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

1158699812640 is a wasteful number, since it uses less digits than its factorization.

1158699812640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244603 (or 244595 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 60.

The spelling of 1158699812640 in words is "one trillion, one hundred fifty-eight billion, six hundred ninety-nine million, eight hundred twelve thousand, six hundred forty".