20662105130 has 8 divisors (see below), whose sum is σ = 37191789252. Its totient is φ = 8264842048.

The previous prime is 20662105117. The next prime is 20662105147. The reversal of 20662105130 is 3150126602.

It can be written as a sum of positive squares in 2 ways, for example, as 18269036569 + 2393068561 = 135163^2 + 48919^2 .

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

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 20662105130.

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, 1033105247 + ... + 1033105266.

Almost surely, 2^20662105130 is an apocalyptic number.

20662105130 is a deficient number, since it is larger than the sum of its proper divisors (16529684122).

20662105130 is a wasteful number, since it uses less digits than its factorization.

20662105130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066210520.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 20662105130 in words is "twenty billion, six hundred sixty-two million, one hundred five thousand, one hundred thirty".