22540241645 has 8 divisors (see below), whose sum is σ = 27287656056. Its totient is φ = 17872615936.

The previous prime is 22540241629. The next prime is 22540241729. The reversal of 22540241645 is 54614204522.

It can be written as a sum of positive squares in 4 ways, for example, as 45941284 + 22494300361 = 6778^2 + 149981^2 .

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 22540241645 - 2⁴ = 22540241629 is a prime.

It is a super-3 number, since 3×22540241645³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19946552 + ... + 19947681.

It is an arithmetic number, because the mean of its divisors is an integer number (3410957007).

Almost surely, 2^22540241645 is an apocalyptic number.

It is an amenable number.

22540241645 is a deficient number, since it is larger than the sum of its proper divisors (4747414411).

22540241645 is a wasteful number, since it uses less digits than its factorization.

22540241645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39894351.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 22540241645 in words is "twenty-two billion, five hundred forty million, two hundred forty-one thousand, six hundred forty-five".