20046216959 has 4 divisors (see below), whose sum is σ = 20106779880. Its totient is φ = 19985654040.

The previous prime is 20046216917. The next prime is 20046216979. The reversal of 20046216959 is 95961264002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20046216959 - 2²⁰ = 20045168383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046216979) 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, 30280964 + ... + 30281625.

It is an arithmetic number, because the mean of its divisors is an integer number (5026694970).

Almost surely, 2^20046216959 is an apocalyptic number.

20046216959 is a deficient number, since it is larger than the sum of its proper divisors (60562921).

20046216959 is an equidigital number, since it uses as much as digits as its factorization.

20046216959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60562920.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 20046216959 in words is "twenty billion, forty-six million, two hundred sixteen thousand, nine hundred fifty-nine".