20006406246 has 16 divisors (see below), whose sum is σ = 40864149504. Its totient is φ = 6526912584.

The previous prime is 20006406163. The next prime is 20006406247. The reversal of 20006406246 is 64260460002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006406247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35472070 + ... + 35472633.

It is an arithmetic number, because the mean of its divisors is an integer number (2554009344).

Almost surely, 2^20006406246 is an apocalyptic number.

20006406246 is an abundant number, since it is smaller than the sum of its proper divisors (20857743258).

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

20006406246 is a wasteful number, since it uses less digits than its factorization.

20006406246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70944755.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 20006406246 its reverse (64260460002), we get a palindrome (84266866248).

The spelling of 20006406246 in words is "twenty billion, six million, four hundred six thousand, two hundred forty-six".