20016047662671 has 16 divisors (see below), whose sum is σ = 26697234503808. Its totient is φ = 13339447024800.

The previous prime is 20016047662669. The next prime is 20016047662679. The reversal of 20016047662671 is 17626674061002.

It is not a de Polignac number, because 20016047662671 - 2¹ = 20016047662669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20016047662671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016047662679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118898260 + ... + 119066486.

It is an arithmetic number, because the mean of its divisors is an integer number (1668577156488).

Almost surely, 2^{20016047662671} is an apocalyptic number.

20016047662671 is a deficient number, since it is larger than the sum of its proper divisors (6681186841137).

20016047662671 is a wasteful number, since it uses less digits than its factorization.

20016047662671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181622.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 20016047662671 in words is "twenty trillion, sixteen billion, forty-seven million, six hundred sixty-two thousand, six hundred seventy-one".