22149144775 has 24 divisors (see below), whose sum is σ = 27657564624. Its totient is φ = 17595456000.

The previous prime is 22149144757. The next prime is 22149144791. The reversal of 22149144775 is 57744194122.

It is a happy number.

It is not a de Polignac number, because 22149144775 - 2²¹ = 22147047623 is a prime.

It is a super-2 number, since 2×22149144775² (a number of 21 digits) contains 22 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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2270809 + ... + 2280541.

It is an arithmetic number, because the mean of its divisors is an integer number (1152398526).

Almost surely, 2^22149144775 is an apocalyptic number.

22149144775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22149144775 is a deficient number, since it is larger than the sum of its proper divisors (5508419849).

22149144775 is a wasteful number, since it uses less digits than its factorization.

22149144775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371 (or 10366 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The spelling of 22149144775 in words is "twenty-two billion, one hundred forty-nine million, one hundred forty-four thousand, seven hundred seventy-five".