20056441515 has 48 divisors (see below), whose sum is σ = 37129344000. Its totient is φ = 9212512320.

The previous prime is 20056441513. The next prime is 20056441547. The reversal of 20056441515 is 51514465002.

It is not a de Polignac number, because 20056441515 - 2¹ = 20056441513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20056441513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 256315 + ... + 325284.

It is an arithmetic number, because the mean of its divisors is an integer number (773528000).

Almost surely, 2^20056441515 is an apocalyptic number.

20056441515 is a deficient number, since it is larger than the sum of its proper divisors (17072902485).

20056441515 is a wasteful number, since it uses less digits than its factorization.

20056441515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581648 (or 581637 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 20056441515 in words is "twenty billion, fifty-six million, four hundred forty-one thousand, five hundred fifteen".