1613366154144 has 144 divisors (see below), whose sum is σ = 4789424203200. Its totient is φ = 514198637568.

The previous prime is 1613366154047. The next prime is 1613366154173. The reversal of 1613366154144 is 4414516633161.

It is a happy number.

1613366154144 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 3 + 6 + 61 + 541 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 1613366154144.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16770372 + ... + 16866300.

It is an arithmetic number, because the mean of its divisors is an integer number (33259890300).

Almost surely, 2^{1613366154144} 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 1613366154144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2394712101600).

1613366154144 is an abundant number, since it is smaller than the sum of its proper divisors (3176058049056).

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

1613366154144 is a wasteful number, since it uses less digits than its factorization.

1613366154144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98507 (or 98496 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 1613366154144 in words is "one trillion, six hundred thirteen billion, three hundred sixty-six million, one hundred fifty-four thousand, one hundred forty-four".