1216096805688 has 32 divisors (see below), whose sum is σ = 3090082050960. Its totient is φ = 398720263680.

The previous prime is 1216096805683. The next prime is 1216096805743. The reversal of 1216096805688 is 8865086906121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216096805681) 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, 415332145 + ... + 415335072.

Almost surely, 2^{1216096805688} is an apocalyptic number.

It is an amenable number.

1216096805688 is an abundant number, since it is smaller than the sum of its proper divisors (1873985245272).

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

1216096805688 is a wasteful number, since it uses less digits than its factorization.

1216096805688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830667287 (or 830667283 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 1216096805688 in words is "one trillion, two hundred sixteen billion, ninety-six million, eight hundred five thousand, six hundred eighty-eight".