20436310015 has 32 divisors (see below), whose sum is σ = 27285921792. Its totient is φ = 14567280000.

The previous prime is 20436310009. The next prime is 20436310039. The reversal of 20436310015 is 51001363402.

It is a de Polignac number, because none of the positive numbers 2^k-20436310015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3352120 + ... + 3358210.

It is an arithmetic number, because the mean of its divisors is an integer number (852685056).

Almost surely, 2^20436310015 is an apocalyptic number.

20436310015 is a deficient number, since it is larger than the sum of its proper divisors (6849611777).

20436310015 is a wasteful number, since it uses less digits than its factorization.

20436310015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7311.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 20436310015 its reverse (51001363402), we get a palindrome (71437673417).

The spelling of 20436310015 in words is "twenty billion, four hundred thirty-six million, three hundred ten thousand, fifteen".