1361551613063 has 4 divisors (see below), whose sum is σ = 1362698667000. Its totient is φ = 1360404559128.

The previous prime is 1361551613039. The next prime is 1361551613111. The reversal of 1361551613063 is 3603161551631.

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

It is a cyclic number.

It is not a de Polignac number, because 1361551613063 - 2²⁶ = 1361484504199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1361551613063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361551613003) 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, 573525188 + ... + 573527561.

It is an arithmetic number, because the mean of its divisors is an integer number (340674666750).

Almost surely, 2^{1361551613063} is an apocalyptic number.

1361551613063 is a deficient number, since it is larger than the sum of its proper divisors (1147053937).

1361551613063 is a wasteful number, since it uses less digits than its factorization.

1361551613063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147053936.

The product of its (nonzero) digits is 145800, while the sum is 41.

The spelling of 1361551613063 in words is "one trillion, three hundred sixty-one billion, five hundred fifty-one million, six hundred thirteen thousand, sixty-three".