1158355463616 has 672 divisors, whose sum is σ = 3818536350720. Its totient is φ = 345929232384.

The previous prime is 1158355463597. The next prime is 1158355463623. The reversal of 1158355463616 is 6163645538511.

1158355463616 is a `hidden beast` number, since 1 + 1 + 5 + 8 + 35 + 546 + 3 + 61 + 6 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1320815370 + ... + 1320816246.

It is an arithmetic number, because the mean of its divisors is an integer number (5682345760).

Almost surely, 2^{1158355463616} is an apocalyptic number.

1158355463616 is a gapful number since it is divisible by the number (16) 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 1158355463616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909268175360).

1158355463616 is an abundant number, since it is smaller than the sum of its proper divisors (2660180887104).

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

1158355463616 is a wasteful number, since it uses less digits than its factorization.

1158355463616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1081 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 54.

The spelling of 1158355463616 in words is "one trillion, one hundred fifty-eight billion, three hundred fifty-five million, four hundred sixty-three thousand, six hundred sixteen".