1216682248686 has 32 divisors (see below), whose sum is σ = 2446317145248. Its totient is φ = 403402567680.

The previous prime is 1216682248619. The next prime is 1216682248753. The reversal of 1216682248686 is 6868422866121.

It is an interprime number because it is at equal distance from previous prime (1216682248619) and next prime (1216682248753).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8588106 + ... + 8728626.

It is an arithmetic number, because the mean of its divisors is an integer number (76447410789).

Almost surely, 2^{1216682248686} is an apocalyptic number.

1216682248686 is an abundant number, since it is smaller than the sum of its proper divisors (1229634896562).

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

1216682248686 is a wasteful number, since it uses less digits than its factorization.

1216682248686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148196.

The product of its digits is 21233664, while the sum is 60.

The spelling of 1216682248686 in words is "one trillion, two hundred sixteen billion, six hundred eighty-two million, two hundred forty-eight thousand, six hundred eighty-six".