20354168669042 has 16 divisors (see below), whose sum is σ = 32880243701760. Its totient is φ = 9394108043472.

The previous prime is 20354168669033. The next prime is 20354168669053. The reversal of 20354168669042 is 24096686145302.

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, 3123692 + ... + 7103927.

It is an arithmetic number, because the mean of its divisors is an integer number (2055015231360).

Almost surely, 2^{20354168669042} is an apocalyptic number.

20354168669042 is a deficient number, since it is larger than the sum of its proper divisors (12526075032718).

20354168669042 is a wasteful number, since it uses less digits than its factorization.

20354168669042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304177.

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 20354168669042 in words is "twenty trillion, three hundred fifty-four billion, one hundred sixty-eight million, six hundred sixty-nine thousand, forty-two".