16031171031216 has 80 divisors (see below), whose sum is σ = 45297960447360. Its totient is φ = 4845112796160.

The previous prime is 16031171031181. The next prime is 16031171031229. The reversal of 16031171031216 is 61213017113061.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 39855385 + ... + 40255608.

It is an arithmetic number, because the mean of its divisors is an integer number (566224505592).

Almost surely, 2^{16031171031216} is an apocalyptic number.

16031171031216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16031171031216 is an abundant number, since it is smaller than the sum of its proper divisors (29266789416144).

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

16031171031216 is a wasteful number, since it uses less digits than its factorization.

16031171031216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80111394 (or 80111388 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

Adding to 16031171031216 its reverse (61213017113061), we get a palindrome (77244188144277).

The spelling of 16031171031216 in words is "sixteen trillion, thirty-one billion, one hundred seventy-one million, thirty-one thousand, two hundred sixteen".