22930646645 has 8 divisors (see below), whose sum is σ = 27769224120. Its totient is φ = 18176218560.

The previous prime is 22930646567. The next prime is 22930646657. The reversal of 22930646645 is 54664603922.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2642062801 + 20288583844 = 51401^2 + 142438^2 .

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

It is not a de Polignac number, because 22930646645 - 2¹⁶ = 22930581109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22930646645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21036746 + ... + 21037835.

It is an arithmetic number, because the mean of its divisors is an integer number (3471153015).

Almost surely, 2^22930646645 is an apocalyptic number.

It is an amenable number.

22930646645 is a deficient number, since it is larger than the sum of its proper divisors (4838577475).

22930646645 is a wasteful number, since it uses less digits than its factorization.

22930646645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42074695.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 22930646645 in words is "twenty-two billion, nine hundred thirty million, six hundred forty-six thousand, six hundred forty-five".