20614666466 has 8 divisors (see below), whose sum is σ = 31147708140. Its totient is φ = 10232097088.

The previous prime is 20614666459. The next prime is 20614666487. The reversal of 20614666466 is 66466641602.

It can be written as a sum of positive squares in 2 ways, for example, as 20159740225 + 454926241 = 141985^2 + 21329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20614666466.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37617731 + ... + 37618278.

Almost surely, 2^20614666466 is an apocalyptic number.

20614666466 is a deficient number, since it is larger than the sum of its proper divisors (10533041674).

20614666466 is a wasteful number, since it uses less digits than its factorization.

20614666466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75236148.

The product of its (nonzero) digits is 1492992, while the sum is 47.

The spelling of 20614666466 in words is "twenty billion, six hundred fourteen million, six hundred sixty-six thousand, four hundred sixty-six".