20022434665742 has 4 divisors (see below), whose sum is σ = 30033651998616. Its totient is φ = 10011217332870.

The previous prime is 20022434665679. The next prime is 20022434665747. The reversal of 20022434665742 is 24756643422002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022434665747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005608666434 + ... + 5005608666437.

It is an arithmetic number, because the mean of its divisors is an integer number (7508412999654).

Almost surely, 2^{20022434665742} is an apocalyptic number.

20022434665742 is a deficient number, since it is larger than the sum of its proper divisors (10011217332874).

20022434665742 is a wasteful number, since it uses less digits than its factorization.

20022434665742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011217332873.

The product of its (nonzero) digits is 3870720, while the sum is 47.

The spelling of 20022434665742 in words is "twenty trillion, twenty-two billion, four hundred thirty-four million, six hundred sixty-five thousand, seven hundred forty-two".