20012230446 has 16 divisors (see below), whose sum is σ = 43103265744. Its totient is φ = 6157609344.

The previous prime is 20012230393. The next prime is 20012230481. The reversal of 20012230446 is 64403221002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128283451 + ... + 128283606.

It is an arithmetic number, because the mean of its divisors is an integer number (2693954109).

Almost surely, 2^20012230446 is an apocalyptic number.

20012230446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20012230446 is an abundant number, since it is smaller than the sum of its proper divisors (23091035298).

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

20012230446 is a wasteful number, since it uses less digits than its factorization.

20012230446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256567075.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20012230446 its reverse (64403221002), we get a palindrome (84415451448).

The spelling of 20012230446 in words is "twenty billion, twelve million, two hundred thirty thousand, four hundred forty-six".