22149946815 has 8 divisors (see below), whose sum is σ = 35439914928. Its totient is φ = 11813304960.

The previous prime is 22149946811. The next prime is 22149946837. The reversal of 22149946815 is 51864994122.

It is a happy number.

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

It is not a de Polignac number, because 22149946815 - 2² = 22149946811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22149946811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738331546 + ... + 738331575.

It is an arithmetic number, because the mean of its divisors is an integer number (4429989366).

Almost surely, 2^22149946815 is an apocalyptic number.

22149946815 is a deficient number, since it is larger than the sum of its proper divisors (13289968113).

22149946815 is a wasteful number, since it uses less digits than its factorization.

22149946815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476663129.

The product of its digits is 1244160, while the sum is 51.

The spelling of 22149946815 in words is "twenty-two billion, one hundred forty-nine million, nine hundred forty-six thousand, eight hundred fifteen".