20456366023 has 2 divisors, whose sum is σ = 20456366024. Its totient is φ = 20456366022.

The previous prime is 20456365981. The next prime is 20456366027. The reversal of 20456366023 is 32066365402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20456366023 - 2¹⁷ = 20456234951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20456366027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10228183011 + 10228183012.

It is an arithmetic number, because the mean of its divisors is an integer number (10228183012).

Almost surely, 2^20456366023 is an apocalyptic number.

20456366023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20456366023 is an equidigital number, since it uses as much as digits as its factorization.

20456366023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 20456366023 in words is "twenty billion, four hundred fifty-six million, three hundred sixty-six thousand, twenty-three".