20641304151 has 48 divisors (see below), whose sum is σ = 34889021440. Its totient is φ = 11645570880.

The previous prime is 20641304107. The next prime is 20641304153. The reversal of 20641304151 is 15140314602.

It is a happy number.

20641304151 is a `hidden beast` number, since 2 + 0 + 641 + 3 + 0 + 4 + 15 + 1 = 666.

It is not a de Polignac number, because 20641304151 - 2¹¹ = 20641302103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20641304153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80851 + ... + 218676.

Almost surely, 2^20641304151 is an apocalyptic number.

20641304151 is a deficient number, since it is larger than the sum of its proper divisors (14247717289).

20641304151 is a wasteful number, since it uses less digits than its factorization.

20641304151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299596 (or 299593 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 20641304151 its reverse (15140314602), we get a palindrome (35781618753).

The spelling of 20641304151 in words is "twenty billion, six hundred forty-one million, three hundred four thousand, one hundred fifty-one".