1364561605544 has 32 divisors (see below), whose sum is σ = 2560532877000. Its totient is φ = 681753050880.

The previous prime is 1364561605489. The next prime is 1364561605577. The reversal of 1364561605544 is 4455061654631.

It can be written as a sum of positive squares in 4 ways, for example, as 1354453716100 + 10107889444 = 1163810^2 + 100538^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1364561605492 and 1364561605501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66394982 + ... + 66415530.

Almost surely, 2^{1364561605544} is an apocalyptic number.

It is an amenable number.

1364561605544 is a deficient number, since it is larger than the sum of its proper divisors (1195971271456).

1364561605544 is a wasteful number, since it uses less digits than its factorization.

1364561605544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26573 (or 26569 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 1364561605544 in words is "one trillion, three hundred sixty-four billion, five hundred sixty-one million, six hundred five thousand, five hundred forty-four".