22154300545 has 16 divisors (see below), whose sum is σ = 28654112592. Its totient is φ = 16346419200.

The previous prime is 22154300543. The next prime is 22154300549. The reversal of 22154300545 is 54500345122.

It can be written as a sum of positive squares in 8 ways, for example, as 9807535089 + 12346765456 = 99033^2 + 111116^2 .

It is not a de Polignac number, because 22154300545 - 2¹ = 22154300543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22154300543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63832 + ... + 219961.

It is an arithmetic number, because the mean of its divisors is an integer number (1790882037).

Almost surely, 2^22154300545 is an apocalyptic number.

It is an amenable number.

22154300545 is a deficient number, since it is larger than the sum of its proper divisors (6499812047).

22154300545 is a wasteful number, since it uses less digits than its factorization.

22154300545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285012.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 22154300545 its reverse (54500345122), we get a palindrome (76654645667).

The spelling of 22154300545 in words is "twenty-two billion, one hundred fifty-four million, three hundred thousand, five hundred forty-five".