1158288232644 has 45 divisors (see below), whose sum is σ = 3028044881631. Its totient is φ = 386089620120.

The previous prime is 1158288232639. The next prime is 1158288232669. The reversal of 1158288232644 is 4462328828511.

The square root of 1158288232644 is 1076238.

It is a perfect power (a square), and thus also a powerful number.

1158288232644 is a `hidden beast` number, since 11 + 582 + 8 + 8 + 2 + 3 + 2 + 6 + 44 = 666.

It is a super-2 number, since 2×1158288232644² (a number of 25 digits) contains 22 as substring.

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 14 ways as a sum of consecutive naturals, for example, 19342389 + ... + 19402179.

Almost surely, 2^{1158288232644} is an apocalyptic number.

1158288232644 is the 1076238-th square number.

It is an amenable number.

1158288232644 is an abundant number, since it is smaller than the sum of its proper divisors (1869756648987).

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

1158288232644 is an frugal number, since it uses more digits than its factorization.

1158288232644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119598 (or 59796 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 54.

The spelling of 1158288232644 in words is "one trillion, one hundred fifty-eight billion, two hundred eighty-eight million, two hundred thirty-two thousand, six hundred forty-four".