20064432051 has 16 divisors (see below), whose sum is σ = 29742709920. Its totient is φ = 13368356640.

The previous prime is 20064432013. The next prime is 20064432077. The reversal of 20064432051 is 15023446002.

It is not a de Polignac number, because 20064432051 - 2⁶ = 20064431987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20064432001) 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, 173760 + ... + 265181.

It is an arithmetic number, because the mean of its divisors is an integer number (1858919370).

Almost surely, 2^20064432051 is an apocalyptic number.

20064432051 is a deficient number, since it is larger than the sum of its proper divisors (9678277869).

20064432051 is a wasteful number, since it uses less digits than its factorization.

20064432051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440643 (or 440637 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20064432051 its reverse (15023446002), we get a palindrome (35087878053).

The spelling of 20064432051 in words is "twenty billion, sixty-four million, four hundred thirty-two thousand, fifty-one".