16812037971215 has 8 divisors (see below), whose sum is σ = 20666505213648. Its totient is φ = 13121590611520.

The previous prime is 16812037971163. The next prime is 16812037971217. The reversal of 16812037971215 is 51217973021861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16812037971215 - 2¹² = 16812037967119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16812037971217) 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, 41004970457 + ... + 41004970866.

It is an arithmetic number, because the mean of its divisors is an integer number (2583313151706).

Almost surely, 2^{16812037971215} is an apocalyptic number.

16812037971215 is a deficient number, since it is larger than the sum of its proper divisors (3854467242433).

16812037971215 is an equidigital number, since it uses as much as digits as its factorization.

16812037971215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82009941369.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 16812037971215 in words is "sixteen trillion, eight hundred twelve billion, thirty-seven million, nine hundred seventy-one thousand, two hundred fifteen".