20655650202611 has 16 divisors (see below), whose sum is σ = 20964883968000. Its totient is φ = 20346929853600.

The previous prime is 20655650202571. The next prime is 20655650202653. The reversal of 20655650202611 is 11620205655602.

It is a cyclic number.

It is not a de Polignac number, because 20655650202611 - 2¹⁰ = 20655650201587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20655650202211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837231806 + ... + 837256476.

It is an arithmetic number, because the mean of its divisors is an integer number (1310305248000).

Almost surely, 2^{20655650202611} is an apocalyptic number.

20655650202611 is a deficient number, since it is larger than the sum of its proper divisors (309233765389).

20655650202611 is a wasteful number, since it uses less digits than its factorization.

20655650202611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34570.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 20655650202611 in words is "twenty trillion, six hundred fifty-five billion, six hundred fifty million, two hundred two thousand, six hundred eleven".