20668086602 has 32 divisors (see below), whose sum is σ = 31725171072. Its totient is φ = 10096061184.

The previous prime is 20668086533. The next prime is 20668086613.

It is a happy number.

20668086602 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12860483 + ... + 12862089.

It is an arithmetic number, because the mean of its divisors is an integer number (991411596).

Almost surely, 2^20668086602 is an apocalyptic number.

20668086602 is a deficient number, since it is larger than the sum of its proper divisors (11057084470).

20668086602 is a wasteful number, since it uses less digits than its factorization.

20668086602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 20668086602 in words is "twenty billion, six hundred sixty-eight million, eighty-six thousand, six hundred two".