20622597153 has 4 divisors (see below), whose sum is σ = 27496796208. Its totient is φ = 13748398100.

The previous prime is 20622597137. The next prime is 20622597197. The reversal of 20622597153 is 35179522602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20622597153 - 2⁴ = 20622597137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20622597113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3437099523 + ... + 3437099528.

It is an arithmetic number, because the mean of its divisors is an integer number (6874199052).

Almost surely, 2^20622597153 is an apocalyptic number.

It is an amenable number.

20622597153 is a deficient number, since it is larger than the sum of its proper divisors (6874199055).

20622597153 is an equidigital number, since it uses as much as digits as its factorization.

20622597153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874199054.

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 20622597153 in words is "twenty billion, six hundred twenty-two million, five hundred ninety-seven thousand, one hundred fifty-three".