20132263515 has 256 divisors, whose sum is σ = 44534956032. Its totient is φ = 7520477184.

The previous prime is 20132263513. The next prime is 20132263519. The reversal of 20132263515 is 51536223102.

It is not a de Polignac number, because 20132263515 - 2¹ = 20132263513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20132263513) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 35758624 + ... + 35759186.

It is an arithmetic number, because the mean of its divisors is an integer number (173964672).

Almost surely, 2^20132263515 is an apocalyptic number.

20132263515 is an abundant number, since it is smaller than the sum of its proper divisors (24402692517).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20132263515 is a wasteful number, since it uses less digits than its factorization.

20132263515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 20132263515 its reverse (51536223102), we get a palindrome (71668486617).

The spelling of 20132263515 in words is "twenty billion, one hundred thirty-two million, two hundred sixty-three thousand, five hundred fifteen".