22045208576645 has 4 divisors (see below), whose sum is σ = 26454250291980. Its totient is φ = 17636166861312.

The previous prime is 22045208576551. The next prime is 22045208576653. The reversal of 22045208576645 is 54667580254022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12258184366561 + 9787024210084 = 3501169^2 + 3128422^2 .

It is a cyclic number.

It is not a de Polignac number, because 22045208576645 - 2²⁴ = 22045191799429 is a prime.

It is a super-3 number, since 3×22045208576645³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204520857660 + ... + 2204520857669.

It is an arithmetic number, because the mean of its divisors is an integer number (6613562572995).

Almost surely, 2^{22045208576645} is an apocalyptic number.

It is an amenable number.

22045208576645 is a deficient number, since it is larger than the sum of its proper divisors (4409041715335).

22045208576645 is an equidigital number, since it uses as much as digits as its factorization.

22045208576645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409041715334.

The product of its (nonzero) digits is 32256000, while the sum is 56.

The spelling of 22045208576645 in words is "twenty-two trillion, forty-five billion, two hundred eight million, five hundred seventy-six thousand, six hundred forty-five".