20206626602 has 4 divisors (see below), whose sum is σ = 30309939906. Its totient is φ = 10103313300.

The previous prime is 20206626589. The next prime is 20206626617. The reversal of 20206626602 is 20662660202.

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., 20187010561 + 19616041 = 142081^2 + 4429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051656649 + ... + 5051656652.

Almost surely, 2^20206626602 is an apocalyptic number.

20206626602 is a deficient number, since it is larger than the sum of its proper divisors (10103313304).

20206626602 is a wasteful number, since it uses less digits than its factorization.

20206626602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103313303.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 20206626602 in words is "twenty billion, two hundred six million, six hundred twenty-six thousand, six hundred two".