545465343564545 has 4 divisors (see below), whose sum is σ = 654558412277460. Its totient is φ = 436372274851632.

The previous prime is 545465343564541. The next prime is 545465343564551.

It is a happy number.

545465343564545 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66712695470656 + 478752648093889 = 8167784^2 + 21880417^2 .

It is a cyclic number.

It is not a de Polignac number, because 545465343564545 - 2² = 545465343564541 is a prime.

It is a super-2 number, since 2×545465343564545² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545465343564541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54546534356450 + ... + 54546534356459.

It is an arithmetic number, because the mean of its divisors is an integer number (163639603069365).

Almost surely, 2^{545465343564545} is an apocalyptic number.

It is an amenable number.

545465343564545 is a deficient number, since it is larger than the sum of its proper divisors (109093068712915).

545465343564545 is a wasteful number, since it uses less digits than its factorization.

545465343564545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109093068712914.

The product of its digits is 5184000000, while the sum is 68.

The spelling of 545465343564545 in words is "five hundred forty-five trillion, four hundred sixty-five billion, three hundred forty-three million, five hundred sixty-four thousand, five hundred forty-five".