22145004524545 has 8 divisors (see below), whose sum is σ = 30370291919424. Its totient is φ = 15185145959664.

The previous prime is 22145004524527. The next prime is 22145004524557. The reversal of 22145004524545 is 54542540054122.

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 22145004524545 - 2¹³ = 22145004516353 is a prime.

It is a Duffinian 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, 316357207459 + ... + 316357207528.

It is an arithmetic number, because the mean of its divisors is an integer number (3796286489928).

Almost surely, 2^{22145004524545} is an apocalyptic number.

It is an amenable number.

22145004524545 is a deficient number, since it is larger than the sum of its proper divisors (8225287394879).

22145004524545 is an equidigital number, since it uses as much as digits as its factorization.

22145004524545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632714414999.

The product of its (nonzero) digits is 1280000, while the sum is 43.

Adding to 22145004524545 its reverse (54542540054122), we get a palindrome (76687544578667).

The spelling of 22145004524545 in words is "twenty-two trillion, one hundred forty-five billion, four million, five hundred twenty-four thousand, five hundred forty-five".