15878677272216 has 32 divisors (see below), whose sum is σ = 43305483470400. Its totient is φ = 4811720385440.

The previous prime is 15878677272209. The next prime is 15878677272217. The reversal of 15878677272216 is 61227277687851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15878677272217) 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, 30073252146 + ... + 30073252673.

It is an arithmetic number, because the mean of its divisors is an integer number (1353296358450).

Almost surely, 2^{15878677272216} is an apocalyptic number.

It is an amenable number.

15878677272216 is an abundant number, since it is smaller than the sum of its proper divisors (27426806198184).

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

15878677272216 is a wasteful number, since it uses less digits than its factorization.

15878677272216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60146504839 (or 60146504835 counting only the distinct ones).

The product of its digits is 221276160, while the sum is 69.

The spelling of 15878677272216 in words is "fifteen trillion, eight hundred seventy-eight billion, six hundred seventy-seven million, two hundred seventy-two thousand, two hundred sixteen".