20266945127 has 16 divisors (see below), whose sum is σ = 23829240960. Its totient is φ = 16993567200.

The previous prime is 20266945117. The next prime is 20266945141. The reversal of 20266945127 is 72154966202.

It is a cyclic number.

It is not a de Polignac number, because 20266945127 - 2²⁴ = 20250167911 is a prime.

It is a super-2 number, since 2×20266945127² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266945117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123752 + ... + 236322.

It is an arithmetic number, because the mean of its divisors is an integer number (1489327560).

Almost surely, 2^20266945127 is an apocalyptic number.

20266945127 is a deficient number, since it is larger than the sum of its proper divisors (3562295833).

20266945127 is a wasteful number, since it uses less digits than its factorization.

20266945127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113854.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 20266945127 in words is "twenty billion, two hundred sixty-six million, nine hundred forty-five thousand, one hundred twenty-seven".