1158551856000 has 2048 divisors, whose sum is σ = 5508352512000. Its totient is φ = 232243200000.

The previous prime is 1158551855957. The next prime is 1158551856019. The reversal of 1158551856000 is 6581558511.

1158551856000 is a `hidden beast` number, since 1 + 1 + 5 + 85 + 5 + 1 + 8 + 560 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 964655400 + ... + 964656600.

It is an arithmetic number, because the mean of its divisors is an integer number (2689625250).

Almost surely, 2^{1158551856000} is an apocalyptic number.

1158551856000 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 1158551856000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2754176256000).

1158551856000 is an abundant number, since it is smaller than the sum of its proper divisors (4349800656000).

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

1158551856000 is a wasteful number, since it uses less digits than its factorization.

1158551856000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 45.

The spelling of 1158551856000 in words is "one trillion, one hundred fifty-eight billion, five hundred fifty-one million, eight hundred fifty-six thousand".