20315305464042 has 16 divisors (see below), whose sum is σ = 40630670465472. Its totient is φ = 6771758565120.

The previous prime is 20315305464023. The next prime is 20315305464121. The reversal of 20315305464042 is 24046450351302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2829523 + ... + 6974009.

It is an arithmetic number, because the mean of its divisors is an integer number (2539416904092).

Almost surely, 2^{20315305464042} is an apocalyptic number.

20315305464042 is an abundant number, since it is smaller than the sum of its proper divisors (20315365001430).

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

20315305464042 is a wasteful number, since it uses less digits than its factorization.

20315305464042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961453.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 20315305464042 in words is "twenty trillion, three hundred fifteen billion, three hundred five million, four hundred sixty-four thousand, forty-two".