20021450424414 has 16 divisors (see below), whose sum is σ = 40061978006400. Its totient is φ = 6670637281880.

The previous prime is 20021450424389. The next prime is 20021450424431. The reversal of 20021450424414 is 41442405412002.

It is a Curzon number.

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, 794867922 + ... + 794893109.

It is an arithmetic number, because the mean of its divisors is an integer number (2503873625400).

Almost surely, 2^{20021450424414} is an apocalyptic number.

20021450424414 is an abundant number, since it is smaller than the sum of its proper divisors (20040527581986).

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

20021450424414 is a wasteful number, since it uses less digits than its factorization.

20021450424414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589763135.

The product of its (nonzero) digits is 40960, while the sum is 33.

Adding to 20021450424414 its reverse (41442405412002), we get a palindrome (61463855836416).

The spelling of 20021450424414 in words is "twenty trillion, twenty-one billion, four hundred fifty million, four hundred twenty-four thousand, four hundred fourteen".