1216074373999 has 8 divisors (see below), whose sum is σ = 1282444432880. Its totient is φ = 1149940929600.

The previous prime is 1216074373981. The next prime is 1216074374023. The reversal of 1216074373999 is 9993734706121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1216074373999 - 2¹¹ = 1216074371951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216074370999) 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, 59143062 + ... + 59163619.

It is an arithmetic number, because the mean of its divisors is an integer number (160305554110).

Almost surely, 2^{1216074373999} is an apocalyptic number.

1216074373999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1216074373999 is a deficient number, since it is larger than the sum of its proper divisors (66370058881).

1216074373999 is a wasteful number, since it uses less digits than its factorization.

1216074373999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118307241.

The product of its (nonzero) digits is 15431472, while the sum is 61.

The spelling of 1216074373999 in words is "one trillion, two hundred sixteen billion, seventy-four million, three hundred seventy-three thousand, nine hundred ninety-nine".