1361201711544 has 24 divisors (see below), whose sum is σ = 3686587968960. Its totient is φ = 453733903824.

The previous prime is 1361201711501. The next prime is 1361201711563. The reversal of 1361201711544 is 4451171021631.

1361201711544 is a `hidden beast` number, since 1 + 36 + 12 + 0 + 1 + 71 + 1 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1361201711499 and 1361201711508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9452789592 + ... + 9452789735.

It is an arithmetic number, because the mean of its divisors is an integer number (153607832040).

Almost surely, 2^{1361201711544} is an apocalyptic number.

It is an amenable number.

1361201711544 is an abundant number, since it is smaller than the sum of its proper divisors (2325386257416).

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

1361201711544 is a wasteful number, since it uses less digits than its factorization.

1361201711544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18905579339 (or 18905579332 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 1361201711544 in words is "one trillion, three hundred sixty-one billion, two hundred one million, seven hundred eleven thousand, five hundred forty-four".