20396822469542 has 16 divisors (see below), whose sum is σ = 31545733614912. Its totient is φ = 9885198883560.

The previous prime is 20396822469533. The next prime is 20396822469631. The reversal of 20396822469542 is 24596422869302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905226728 + ... + 905249259.

It is an arithmetic number, because the mean of its divisors is an integer number (1971608350932).

Almost surely, 2^{20396822469542} is an apocalyptic number.

20396822469542 is a deficient number, since it is larger than the sum of its proper divisors (11148911145370).

20396822469542 is a wasteful number, since it uses less digits than its factorization.

20396822469542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810476163.

The product of its (nonzero) digits is 89579520, while the sum is 62.

The spelling of 20396822469542 in words is "twenty trillion, three hundred ninety-six billion, eight hundred twenty-two million, four hundred sixty-nine thousand, five hundred forty-two".