20414666266 has 4 divisors (see below), whose sum is σ = 30621999402. Its totient is φ = 10207333132.

The previous prime is 20414666221. The next prime is 20414666273. The reversal of 20414666266 is 66266641402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20214868041 + 199798225 = 142179^2 + 14135^2 .

It is a super-3 number, since 3×20414666266³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5103666565 + ... + 5103666568.

Almost surely, 2^20414666266 is an apocalyptic number.

20414666266 is a deficient number, since it is larger than the sum of its proper divisors (10207333136).

20414666266 is a wasteful number, since it uses less digits than its factorization.

20414666266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207333135.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 20414666266 in words is "twenty billion, four hundred fourteen million, six hundred sixty-six thousand, two hundred sixty-six".