20457775267106 has 16 divisors (see below), whose sum is σ = 31436178095448. Its totient is φ = 9979066060800.

The previous prime is 20457775267063. The next prime is 20457775267129. The reversal of 20457775267106 is 60176257775402.

It can be written as a sum of positive squares in 4 ways, for example, as 12709118050225 + 7748657216881 = 3564985^2 + 2783641^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751075 + ... + 6631878.

Almost surely, 2^{20457775267106} is an apocalyptic number.

20457775267106 is a deficient number, since it is larger than the sum of its proper divisors (10978402828342).

20457775267106 is a wasteful number, since it uses less digits than its factorization.

20457775267106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8412757.

The product of its (nonzero) digits is 34574400, while the sum is 59.

The spelling of 20457775267106 in words is "twenty trillion, four hundred fifty-seven billion, seven hundred seventy-five million, two hundred sixty-seven thousand, one hundred six".