20653240046 has 8 divisors (see below), whose sum is σ = 32610379080. Its totient is φ = 9783113688.

The previous prime is 20653240043. The next prime is 20653240061. The reversal of 20653240046 is 64004235602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20653239994 and 20653240021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20653240043) 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, 271753121 + ... + 271753196.

It is an arithmetic number, because the mean of its divisors is an integer number (4076297385).

Almost surely, 2^20653240046 is an apocalyptic number.

20653240046 is a deficient number, since it is larger than the sum of its proper divisors (11957139034).

20653240046 is a wasteful number, since it uses less digits than its factorization.

20653240046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543506338.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 20653240046 its reverse (64004235602), we get a palindrome (84657475648).

The spelling of 20653240046 in words is "twenty billion, six hundred fifty-three million, two hundred forty thousand, forty-six".