20623643206 has 8 divisors (see below), whose sum is σ = 30936075624. Its totient is φ = 10311618000.

The previous prime is 20623643153. The next prime is 20623643321. The reversal of 20623643206 is 60234632602.

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

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, 134706 + ... + 243706.

It is an arithmetic number, because the mean of its divisors is an integer number (3867009453).

Almost surely, 2^20623643206 is an apocalyptic number.

20623643206 is a deficient number, since it is larger than the sum of its proper divisors (10312432418).

20623643206 is a wasteful number, since it uses less digits than its factorization.

20623643206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203606.

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 20623643206 in words is "twenty billion, six hundred twenty-three million, six hundred forty-three thousand, two hundred six".