20662766246 has 8 divisors (see below), whose sum is σ = 32817334680. Its totient is φ = 9723654688.

The previous prime is 20662766219. The next prime is 20662766251. The reversal of 20662766246 is 64266726602.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20662766246.

It is a congruent number.

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, 303864176 + ... + 303864243.

It is an arithmetic number, because the mean of its divisors is an integer number (4102166835).

Almost surely, 2^20662766246 is an apocalyptic number.

20662766246 is a deficient number, since it is larger than the sum of its proper divisors (12154568434).

20662766246 is a wasteful number, since it uses less digits than its factorization.

20662766246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607728438.

The product of its (nonzero) digits is 1741824, while the sum is 47.

The spelling of 20662766246 in words is "twenty billion, six hundred sixty-two million, seven hundred sixty-six thousand, two hundred forty-six".