22206415645 has 8 divisors (see below), whose sum is σ = 26648788320. Its totient is φ = 17764406160.

The previous prime is 22206415589. The next prime is 22206415657. The reversal of 22206415645 is 54651460222.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-22206415645 is a prime.

It is a super-3 number, since 3×22206415645³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69426 + ... + 221884.

It is an arithmetic number, because the mean of its divisors is an integer number (3331098540).

Almost surely, 2^22206415645 is an apocalyptic number.

It is an amenable number.

22206415645 is a deficient number, since it is larger than the sum of its proper divisors (4442372675).

22206415645 is a wasteful number, since it uses less digits than its factorization.

22206415645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181595.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 22206415645 its reverse (54651460222), we get a palindrome (76857875867).

The spelling of 22206415645 in words is "twenty-two billion, two hundred six million, four hundred fifteen thousand, six hundred forty-five".