20016272447 has 16 divisors (see below), whose sum is σ = 21972256992. Its totient is φ = 18157870080.

The previous prime is 20016272431. The next prime is 20016272459. The reversal of 20016272447 is 74427261002.

It is not a de Polignac number, because 20016272447 - 2⁴ = 20016272431 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 (20016272407) 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, 115148 + ... + 230849.

It is an arithmetic number, because the mean of its divisors is an integer number (1373266062).

Almost surely, 2^20016272447 is an apocalyptic number.

20016272447 is a deficient number, since it is larger than the sum of its proper divisors (1955984545).

20016272447 is a wasteful number, since it uses less digits than its factorization.

20016272447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346138.

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 20016272447 in words is "twenty billion, sixteen million, two hundred seventy-two thousand, four hundred forty-seven".