1216116614 has 16 divisors (see below), whose sum is σ = 1856293200. Its totient is φ = 597365664.

The previous prime is 1216116611. The next prime is 1216116631. The reversal of 1216116614 is 4166116121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216116611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285452 + ... + 289680.

It is an arithmetic number, because the mean of its divisors is an integer number (116018325).

Almost surely, 2^1216116614 is an apocalyptic number.

1216116614 is a deficient number, since it is larger than the sum of its proper divisors (640176586).

1216116614 is a wasteful number, since it uses less digits than its factorization.

1216116614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6727.

The product of its digits is 1728, while the sum is 29.

The square root of 1216116614 is about 34872.8635761390. The cubic root of 1216116614 is about 1067.3947782435.

The spelling of 1216116614 in words is "one billion, two hundred sixteen million, one hundred sixteen thousand, six hundred fourteen".