1216351433696 has 48 divisors (see below), whose sum is σ = 2737816704000. Its totient is φ = 521098047360.

The previous prime is 1216351433681. The next prime is 1216351433707. The reversal of 1216351433696 is 6963341536121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418196 + ... + 1614803.

It is an arithmetic number, because the mean of its divisors is an integer number (57037848000).

Almost surely, 2^{1216351433696} is an apocalyptic number.

1216351433696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1216351433696 is an abundant number, since it is smaller than the sum of its proper divisors (1521465270304).

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

1216351433696 is a wasteful number, since it uses less digits than its factorization.

1216351433696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035687 (or 2035679 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 50.

The spelling of 1216351433696 in words is "one trillion, two hundred sixteen billion, three hundred fifty-one million, four hundred thirty-three thousand, six hundred ninety-six".