20996950413 has 8 divisors (see below), whose sum is σ = 28033616448. Its totient is φ = 13979125664.

The previous prime is 20996950397. The next prime is 20996950423. The reversal of 20996950413 is 31405969902.

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

It is a cyclic number.

It is not a de Polignac number, because 20996950413 - 2⁴ = 20996950397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20996950423) 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, 4707720 + ... + 4712177.

It is an arithmetic number, because the mean of its divisors is an integer number (3504202056).

Almost surely, 2^20996950413 is an apocalyptic number.

It is an amenable number.

20996950413 is a deficient number, since it is larger than the sum of its proper divisors (7036666035).

20996950413 is an equidigital number, since it uses as much as digits as its factorization.

20996950413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9420643.

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 20996950413 in words is "twenty billion, nine hundred ninety-six million, nine hundred fifty thousand, four hundred thirteen".