20316005442 has 40 divisors (see below), whose sum is σ = 45531304896. Its totient is φ = 6770751768.

The previous prime is 20316005401. The next prime is 20316005443. The reversal of 20316005442 is 24450061302.

20316005442 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 600 + 54 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20316005443) 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 19 ways as a sum of consecutive naturals, for example, 1393563 + ... + 1408065.

Almost surely, 2^20316005442 is an apocalyptic number.

20316005442 is an abundant number, since it is smaller than the sum of its proper divisors (25215299454).

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

20316005442 is a wasteful number, since it uses less digits than its factorization.

20316005442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23164 (or 23155 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20316005442 its reverse (24450061302), we get a palindrome (44766066744).

The spelling of 20316005442 in words is "twenty billion, three hundred sixteen million, five thousand, four hundred forty-two".