22149144785 has 8 divisors (see below), whose sum is σ = 27734581440. Its totient is φ = 16948910704.

The previous prime is 22149144757. The next prime is 22149144791. The reversal of 22149144785 is 58744194122.

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 22149144785 - 2³² = 17854177489 is a prime.

It is a super-2 number, since 2×22149144785² (a number of 21 digits) contains 22 as substring.

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, 96300515 + ... + 96300744.

It is an arithmetic number, because the mean of its divisors is an integer number (3466822680).

Almost surely, 2^22149144785 is an apocalyptic number.

It is an amenable number.

22149144785 is a deficient number, since it is larger than the sum of its proper divisors (5585436655).

22149144785 is a wasteful number, since it uses less digits than its factorization.

22149144785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192601287.

The product of its digits is 645120, while the sum is 47.

The spelling of 22149144785 in words is "twenty-two billion, one hundred forty-nine million, one hundred forty-four thousand, seven hundred eighty-five".