20034215246642 has 16 divisors (see below), whose sum is σ = 30187801308672. Its totient is φ = 9971619927360.

The previous prime is 20034215246641. The next prime is 20034215246659. The reversal of 20034215246642 is 24664251243002.

It is a self number, because there is not a number n which added to its sum of digits gives 20034215246642.

It is not an unprimeable number, because it can be changed into a prime (20034215246641) by changing a digit.

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, 6615443 + ... + 9156009.

It is an arithmetic number, because the mean of its divisors is an integer number (1886737581792).

Almost surely, 2^{20034215246642} is an apocalyptic number.

20034215246642 is a deficient number, since it is larger than the sum of its proper divisors (10153586062030).

20034215246642 is a wasteful number, since it uses less digits than its factorization.

20034215246642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558473.

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 20034215246642 its reverse (24664251243002), we get a palindrome (44698466489644).

The spelling of 20034215246642 in words is "twenty trillion, thirty-four billion, two hundred fifteen million, two hundred forty-six thousand, six hundred forty-two".