20206660202 has 4 divisors (see below), whose sum is σ = 30309990306. Its totient is φ = 10103330100.

The previous prime is 20206660169. The next prime is 20206660213.

20206660202 is nontrivially palindromic in base 10.

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., 19409783761 + 796876441 = 139319^2 + 28229^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051665049 + ... + 5051665052.

Almost surely, 2^20206660202 is an apocalyptic number.

20206660202 is a deficient number, since it is larger than the sum of its proper divisors (10103330104).

20206660202 is a wasteful number, since it uses less digits than its factorization.

20206660202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103330103.

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 20206660202 in words is "twenty billion, two hundred six million, six hundred sixty thousand, two hundred two".