1216073064 has 64 divisors (see below), whose sum is σ = 3111050880. Its totient is φ = 396000000.

The previous prime is 1216073041. The next prime is 1216073113. The reversal of 1216073064 is 4603706121.

1216073064 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218314 + ... + 223814.

It is an arithmetic number, because the mean of its divisors is an integer number (48610170).

Almost surely, 2^1216073064 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 1216073064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555525440).

1216073064 is an abundant number, since it is smaller than the sum of its proper divisors (1894977816).

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

1216073064 is a wasteful number, since it uses less digits than its factorization.

1216073064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722 (or 5718 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 1216073064 is about 34872.2391595378. The cubic root of 1216073064 is about 1067.3820367030.

Adding to 1216073064 its reverse (4603706121), we get a palindrome (5819779185).

The spelling of 1216073064 in words is "one billion, two hundred sixteen million, seventy-three thousand, sixty-four".