20622501163653 has 16 divisors (see below), whose sum is σ = 28944221880000. Its totient is φ = 13024575308160.

The previous prime is 20622501163643. The next prime is 20622501163697. The reversal of 20622501163653 is 35636110522602.

It is a happy number.

It is not a de Polignac number, because 20622501163653 - 2¹⁰ = 20622501162629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20622501163643) 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, 2446833 + ... + 6872553.

It is an arithmetic number, because the mean of its divisors is an integer number (1809013867500).

Almost surely, 2^{20622501163653} is an apocalyptic number.

It is an amenable number.

20622501163653 is a deficient number, since it is larger than the sum of its proper divisors (8321720716347).

20622501163653 is a wasteful number, since it uses less digits than its factorization.

20622501163653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4507492.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 20622501163653 in words is "twenty trillion, six hundred twenty-two billion, five hundred one million, one hundred sixty-three thousand, six hundred fifty-three".