1165214016 has 84 divisors (see below), whose sum is σ = 3345474132. Its totient is φ = 387753984.

The previous prime is 1165213967. The next prime is 1165214023. The reversal of 1165214016 is 6104125611.

1165214016 is a `hidden beast` number, since 1 + 1 + 652 + 1 + 4 + 0 + 1 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 639887616 + 525326400 = 25296^2 + 22920^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 443940 + ... + 446556.

It is an arithmetic number, because the mean of its divisors is an integer number (39827073).

Almost surely, 2^1165214016 is an apocalyptic number.

1165214016 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 1165214016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672737066).

1165214016 is an abundant number, since it is smaller than the sum of its proper divisors (2180260116).

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

1165214016 is a wasteful number, since it uses less digits than its factorization.

1165214016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408 (or 3395 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1165214016 is about 34135.2313013989. The cubic root of 1165214016 is about 1052.2894912842.

Adding to 1165214016 its reverse (6104125611), we get a palindrome (7269339627).

The spelling of 1165214016 in words is "one billion, one hundred sixty-five million, two hundred fourteen thousand, sixteen".