20626121360205 has 384 divisors, whose sum is σ = 40728854200320. Its totient is φ = 9620459735040.

The previous prime is 20626121360203. The next prime is 20626121360213. The reversal of 20626121360205 is 50206312162602.

20626121360205 is a `hidden beast` number, since 2 + 0 + 6 + 2 + 612 + 1 + 36 + 0 + 2 + 0 + 5 = 666.

It is not a de Polignac number, because 20626121360205 - 2¹ = 20626121360203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20626121360205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20626121360203) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 4312379244 + ... + 4312384026.

It is an arithmetic number, because the mean of its divisors is an integer number (106064724480).

Almost surely, 2^{20626121360205} is an apocalyptic number.

It is an amenable number.

20626121360205 is a deficient number, since it is larger than the sum of its proper divisors (20102732840115).

20626121360205 is a wasteful number, since it uses less digits than its factorization.

20626121360205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001 (or 4998 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 20626121360205 in words is "twenty trillion, six hundred twenty-six billion, one hundred twenty-one million, three hundred sixty thousand, two hundred five".