22744170852145 has 16 divisors (see below), whose sum is σ = 27347782355712. Its totient is φ = 18158851152000.

The previous prime is 22744170852097. The next prime is 22744170852197. The reversal of 22744170852145 is 54125807144722.

It is a de Polignac number, because none of the positive numbers 2^k-22744170852145 is a prime.

It is a super-2 number, since 2×22744170852145² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22744170852092 and 22744170852101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3526509 + ... + 7610821.

It is an arithmetic number, because the mean of its divisors is an integer number (1709236397232).

Almost surely, 2^{22744170852145} is an apocalyptic number.

It is an amenable number.

22744170852145 is a deficient number, since it is larger than the sum of its proper divisors (4603611503567).

22744170852145 is a wasteful number, since it uses less digits than its factorization.

22744170852145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086552.

The product of its (nonzero) digits is 5017600, while the sum is 52.

Adding to 22744170852145 its reverse (54125807144722), we get a palindrome (76869977996867).

The spelling of 22744170852145 in words is "twenty-two trillion, seven hundred forty-four billion, one hundred seventy million, eight hundred fifty-two thousand, one hundred forty-five".