20010200647 has 16 divisors (see below), whose sum is σ = 20322070560. Its totient is φ = 19701061632.

The previous prime is 20010200627. The next prime is 20010200657. The reversal of 20010200647 is 74600201002.

It is a cyclic number.

It is not a de Polignac number, because 20010200647 - 2¹¹ = 20010198599 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 (20010200627) 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, 19370443 + ... + 19371475.

It is an arithmetic number, because the mean of its divisors is an integer number (1270129410).

Almost surely, 2^20010200647 is an apocalyptic number.

20010200647 is a deficient number, since it is larger than the sum of its proper divisors (311869913).

20010200647 is a wasteful number, since it uses less digits than its factorization.

20010200647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 20010200647 its reverse (74600201002), we get a palindrome (94610401649).

The spelling of 20010200647 in words is "twenty billion, ten million, two hundred thousand, six hundred forty-seven".