1611613543143 has 8 divisors (see below), whose sum is σ = 2164277180800. Its totient is φ = 1066679467128.

The previous prime is 1611613543069. The next prime is 1611613543223. The reversal of 1611613543143 is 3413453161161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1611613543143 - 2²⁰ = 1611612494567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611613543343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932389923 + ... + 1932390756.

It is an arithmetic number, because the mean of its divisors is an integer number (270534647600).

Almost surely, 2^{1611613543143} is an apocalyptic number.

1611613543143 is a deficient number, since it is larger than the sum of its proper divisors (552663637657).

1611613543143 is a wasteful number, since it uses less digits than its factorization.

1611613543143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864780821.

The product of its digits is 77760, while the sum is 39.

The spelling of 1611613543143 in words is "one trillion, six hundred eleven billion, six hundred thirteen million, five hundred forty-three thousand, one hundred forty-three".