20266254079 has 2 divisors, whose sum is σ = 20266254080. Its totient is φ = 20266254078.

The previous prime is 20266254011. The next prime is 20266254091. The reversal of 20266254079 is 97045266202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20266254079 - 2⁷ = 20266253951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20266252079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133127039 + 10133127040.

It is an arithmetic number, because the mean of its divisors is an integer number (10133127040).

Almost surely, 2^20266254079 is an apocalyptic number.

20266254079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20266254079 is an equidigital number, since it uses as much as digits as its factorization.

20266254079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 20266254079 in words is "twenty billion, two hundred sixty-six million, two hundred fifty-four thousand, seventy-nine".