20663017413 has 8 divisors (see below), whose sum is σ = 27551360928. Its totient is φ = 13775009424.

The previous prime is 20663017363. The next prime is 20663017423. The reversal of 20663017413 is 31471036602.

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

It is not a de Polignac number, because 20663017413 - 2²¹ = 20660920261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20663017423) 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, 167095 + ... + 263147.

It is an arithmetic number, because the mean of its divisors is an integer number (3443920116).

Almost surely, 2^20663017413 is an apocalyptic number.

It is an amenable number.

20663017413 is a deficient number, since it is larger than the sum of its proper divisors (6888343515).

20663017413 is an equidigital number, since it uses as much as digits as its factorization.

20663017413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167763.

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 20663017413 in words is "twenty billion, six hundred sixty-three million, seventeen thousand, four hundred thirteen".