20246421116 has 12 divisors (see below), whose sum is σ = 37515427488. Its totient is φ = 9527727552.

The previous prime is 20246421103. The next prime is 20246421119. The reversal of 20246421116 is 61112464202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20246421119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148870676 + ... + 148870811.

It is an arithmetic number, because the mean of its divisors is an integer number (3126285624).

Almost surely, 2^20246421116 is an apocalyptic number.

It is an amenable number.

20246421116 is a deficient number, since it is larger than the sum of its proper divisors (17269006372).

20246421116 is a wasteful number, since it uses less digits than its factorization.

20246421116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297741508 (or 297741506 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 20246421116 its reverse (61112464202), we get a palindrome (81358885318).

The spelling of 20246421116 in words is "twenty billion, two hundred forty-six million, four hundred twenty-one thousand, one hundred sixteen".