16015378871216 has 30 divisors (see below), whose sum is σ = 31472991594036. Its totient is φ = 7894905037600.

The previous prime is 16015378871209. The next prime is 16015378871231. The reversal of 16015378871216 is 61217887351061.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99201350 + ... + 99362661.

Almost surely, 2^{16015378871216} is an apocalyptic number.

16015378871216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16015378871216 is a deficient number, since it is larger than the sum of its proper divisors (15457612722820).

16015378871216 is an equidigital number, since it uses as much as digits as its factorization.

16015378871216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198564161 (or 198564084 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 16015378871216 in words is "sixteen trillion, fifteen billion, three hundred seventy-eight million, eight hundred seventy-one thousand, two hundred sixteen".