20005222662523 has 4 divisors (see below), whose sum is σ = 22863111614320. Its totient is φ = 17147333710728.

The previous prime is 20005222662521. The next prime is 20005222662527. The reversal of 20005222662523 is 32526622250002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20005222662523 - 2¹ = 20005222662521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20005222662521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428944475888 + ... + 1428944475901.

It is an arithmetic number, because the mean of its divisors is an integer number (5715777903580).

Almost surely, 2^{20005222662523} is an apocalyptic number.

20005222662523 is a deficient number, since it is larger than the sum of its proper divisors (2857888951797).

20005222662523 is an equidigital number, since it uses as much as digits as its factorization.

20005222662523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857888951796.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 20005222662523 in words is "twenty trillion, five billion, two hundred twenty-two million, six hundred sixty-two thousand, five hundred twenty-three".