6545420245456 has 10 divisors (see below), whose sum is σ = 12681751725602. Its totient is φ = 3272710122720.

The previous prime is 6545420245433. The next prime is 6545420245477.

6545420245456 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 6545308224400 + 112021056 = 2558380^2 + 10584^2 .

It is a super-3 number, since 3×6545420245456³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204544382655 + ... + 204544382686.

Almost surely, 2^{6545420245456} is an apocalyptic number.

It is an amenable number.

6545420245456 is a deficient number, since it is larger than the sum of its proper divisors (6136331480146).

6545420245456 is a wasteful number, since it uses less digits than its factorization.

6545420245456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409088765349 (or 409088765343 counting only the distinct ones).

The product of its (nonzero) digits is 23040000, while the sum is 52.

The spelling of 6545420245456 in words is "six trillion, five hundred forty-five billion, four hundred twenty million, two hundred forty-five thousand, four hundred fifty-six".