1216682158476 has 12 divisors (see below), whose sum is σ = 2838925036472. Its totient is φ = 405560719488.

The previous prime is 1216682158457. The next prime is 1216682158507. The reversal of 1216682158476 is 6748512866121.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50695089925 + ... + 50695089948.

Almost surely, 2^{1216682158476} is an apocalyptic number.

It is an amenable number.

1216682158476 is an abundant number, since it is smaller than the sum of its proper divisors (1622242877996).

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

1216682158476 is a wasteful number, since it uses less digits than its factorization.

1216682158476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101390179880 (or 101390179878 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The spelling of 1216682158476 in words is "one trillion, two hundred sixteen billion, six hundred eighty-two million, one hundred fifty-eight thousand, four hundred seventy-six".