20064571147 has 8 divisors (see below), whose sum is σ = 21535866576. Its totient is φ = 18625612032.

The previous prime is 20064571129. The next prime is 20064571151. The reversal of 20064571147 is 74117546002.

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

It is a cyclic number.

It is not a de Polignac number, because 20064571147 - 2¹¹ = 20064569099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20064571547) 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, 8082793 + ... + 8085274.

It is an arithmetic number, because the mean of its divisors is an integer number (2691983322).

Almost surely, 2^20064571147 is an apocalyptic number.

20064571147 is a deficient number, since it is larger than the sum of its proper divisors (1471295429).

20064571147 is a wasteful number, since it uses less digits than its factorization.

20064571147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16168157.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 20064571147 in words is "twenty billion, sixty-four million, five hundred seventy-one thousand, one hundred forty-seven".