20271611466 has 24 divisors (see below), whose sum is σ = 43925025924. Its totient is φ = 6756711360.

The previous prime is 20271611429. The next prime is 20271611497. The reversal of 20271611466 is 66411617202.

It can be written as a sum of positive squares in 2 ways, for example, as 20190989025 + 80622441 = 142095^2 + 8979^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20271611466.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281176 + ... + 345836.

Almost surely, 2^20271611466 is an apocalyptic number.

20271611466 is an abundant number, since it is smaller than the sum of its proper divisors (23653414458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20271611466 is a wasteful number, since it uses less digits than its factorization.

20271611466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82086 (or 82083 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20271611466 in words is "twenty billion, two hundred seventy-one million, six hundred eleven thousand, four hundred sixty-six".