1156165416 has 144 divisors (see below), whose sum is σ = 3645813600. Its totient is φ = 324241344.

The previous prime is 1156165379. The next prime is 1156165433. The reversal of 1156165416 is 6145616511.

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 35 ways as a sum of consecutive naturals, for example, 1754095 + ... + 1754753.

It is an arithmetic number, because the mean of its divisors is an integer number (25318150).

Almost surely, 2^1156165416 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 1156165416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1822906800).

1156165416 is an abundant number, since it is smaller than the sum of its proper divisors (2489648184).

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

1156165416 is a wasteful number, since it uses less digits than its factorization.

1156165416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 730 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 1156165416 is about 34002.4325012197. The cubic root of 1156165416 is about 1049.5585191638.

The spelling of 1156165416 in words is "one billion, one hundred fifty-six million, one hundred sixty-five thousand, four hundred sixteen".