20046654623 has 4 divisors (see below), whose sum is σ = 20051502120. Its totient is φ = 20041807128.

The previous prime is 20046654569. The next prime is 20046654659. The reversal of 20046654623 is 32645664002.

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 20046654623 - 2¹² = 20046650527 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 (20046651623) 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, 2417540 + ... + 2425817.

It is an arithmetic number, because the mean of its divisors is an integer number (5012875530).

Almost surely, 2^20046654623 is an apocalyptic number.

20046654623 is a deficient number, since it is larger than the sum of its proper divisors (4847497).

20046654623 is an equidigital number, since it uses as much as digits as its factorization.

20046654623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847496.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 20046654623 in words is "twenty billion, forty-six million, six hundred fifty-four thousand, six hundred twenty-three".