20046656662 has 4 divisors (see below), whose sum is σ = 30069984996. Its totient is φ = 10023328330.

The previous prime is 20046656639. The next prime is 20046656681. The reversal of 20046656662 is 26665664002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26665664002 = 2 ⋅13332832001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011664164 + ... + 5011664167.

It is an arithmetic number, because the mean of its divisors is an integer number (7517496249).

Almost surely, 2^20046656662 is an apocalyptic number.

20046656662 is a deficient number, since it is larger than the sum of its proper divisors (10023328334).

20046656662 is a wasteful number, since it uses less digits than its factorization.

20046656662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10023328333.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 20046656662 in words is "twenty billion, forty-six million, six hundred fifty-six thousand, six hundred sixty-two".