1365561365632 has 64 divisors (see below), whose sum is σ = 2798650296000. Its totient is φ = 663216712704.

The previous prime is 1365561365603. The next prime is 1365561365671. The reversal of 1365561365632 is 2365631655631.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1365561365632.

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, 2596183 + ... + 3077545.

It is an arithmetic number, because the mean of its divisors is an integer number (43728910875).

Almost surely, 2^{1365561365632} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1365561365632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1399325148000).

1365561365632 is an abundant number, since it is smaller than the sum of its proper divisors (1433088930368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1365561365632 is an equidigital number, since it uses as much as digits as its factorization.

1365561365632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482013 (or 482001 counting only the distinct ones).

The product of its digits is 8748000, while the sum is 52.

The spelling of 1365561365632 in words is "one trillion, three hundred sixty-five billion, five hundred sixty-one million, three hundred sixty-five thousand, six hundred thirty-two".