20662602406206 has 16 divisors (see below), whose sum is σ = 41325332230800. Its totient is φ = 6887512899008.

The previous prime is 20662602406091. The next prime is 20662602406211. The reversal of 20662602406206 is 60260420626602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3132321 + ... + 7150988.

It is an arithmetic number, because the mean of its divisors is an integer number (2582833264425).

Almost surely, 2^{20662602406206} is an apocalyptic number.

20662602406206 is an abundant number, since it is smaller than the sum of its proper divisors (20662729824594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20662602406206 is a wasteful number, since it uses less digits than its factorization.

20662602406206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10618203.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20662602406206 in words is "twenty trillion, six hundred sixty-two billion, six hundred two million, four hundred six thousand, two hundred six".