1158509016 has 96 divisors (see below), whose sum is σ = 3662231040. Its totient is φ = 323953344.

The previous prime is 1158508991. The next prime is 1158509069. The reversal of 1158509016 is 6109058511.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 766 + ... + 48141.

It is an arithmetic number, because the mean of its divisors is an integer number (38148240).

Almost surely, 2^1158509016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1158509016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831115520).

1158509016 is an abundant number, since it is smaller than the sum of its proper divisors (2503722024).

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

1158509016 is a wasteful number, since it uses less digits than its factorization.

1158509016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48973 (or 48966 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 36.

The square root of 1158509016 is about 34036.8772950751. The cubic root of 1158509016 is about 1050.2672081845.

The spelling of 1158509016 in words is "one billion, one hundred fifty-eight million, five hundred nine thousand, sixteen".