20522278554623 has 8 divisors (see below), whose sum is σ = 21184583702016. Its totient is φ = 19859991917400.

The previous prime is 20522278554607. The next prime is 20522278554637. The reversal of 20522278554623 is 32645587222502.

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

It is a cyclic number.

It is not a de Polignac number, because 20522278554623 - 2⁴ = 20522278554607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522278554643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2356661 + ... + 6826302.

It is an arithmetic number, because the mean of its divisors is an integer number (2648072962752).

Almost surely, 2^{20522278554623} is an apocalyptic number.

20522278554623 is a deficient number, since it is larger than the sum of its proper divisors (662305147393).

20522278554623 is an equidigital number, since it uses as much as digits as its factorization.

20522278554623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9255085.

The product of its (nonzero) digits is 16128000, while the sum is 53.

The spelling of 20522278554623 in words is "twenty trillion, five hundred twenty-two billion, two hundred seventy-eight million, five hundred fifty-four thousand, six hundred twenty-three".