1216161867414 has 64 divisors (see below), whose sum is σ = 2626928236800. Its totient is φ = 373133185152.

The previous prime is 1216161867407. The next prime is 1216161867439. The reversal of 1216161867414 is 4147681616121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46160257 + ... + 46186595.

It is an arithmetic number, because the mean of its divisors is an integer number (41045753700).

Almost surely, 2^{1216161867414} is an apocalyptic number.

1216161867414 is an abundant number, since it is smaller than the sum of its proper divisors (1410766369386).

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

1216161867414 is a wasteful number, since it uses less digits than its factorization.

1216161867414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28029.

The product of its digits is 387072, while the sum is 48.

The spelling of 1216161867414 in words is "one trillion, two hundred sixteen billion, one hundred sixty-one million, eight hundred sixty-seven thousand, four hundred fourteen".