1158738376320 has 512 divisors, whose sum is σ = 4966030425600. Its totient is φ = 249274368000.

The previous prime is 1158738376309. The next prime is 1158738376351. The reversal of 1158738376320 is 236738378511.

It is a happy number.

1158738376320 is a `hidden beast` number, since 1 + 1 + 587 + 3 + 8 + 37 + 6 + 3 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1774570 + ... + 2338070.

It is an arithmetic number, because the mean of its divisors is an integer number (9699278175).

Almost surely, 2^{1158738376320} is an apocalyptic number.

1158738376320 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 1158738376320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483015212800).

1158738376320 is an abundant number, since it is smaller than the sum of its proper divisors (3807292049280).

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

1158738376320 is a wasteful number, since it uses less digits than its factorization.

1158738376320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563553 (or 563535 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 1158738376320 in words is "one trillion, one hundred fifty-eight billion, seven hundred thirty-eight million, three hundred seventy-six thousand, three hundred twenty".