20501948514 has 16 divisors (see below), whose sum is σ = 41029432128. Its totient is φ = 6829726992.

The previous prime is 20501948503. The next prime is 20501948567. The reversal of 20501948514 is 41584910502.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053517 + ... + 1072800.

It is an arithmetic number, because the mean of its divisors is an integer number (2564339508).

Almost surely, 2^20501948514 is an apocalyptic number.

20501948514 is an abundant number, since it is smaller than the sum of its proper divisors (20527483614).

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

20501948514 is a wasteful number, since it uses less digits than its factorization.

20501948514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127929.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 20501948514 in words is "twenty billion, five hundred one million, nine hundred forty-eight thousand, five hundred fourteen".