1611101610043 has 4 divisors (see below), whose sum is σ = 1611118598760. Its totient is φ = 1611084621328.

The previous prime is 1611101610017. The next prime is 1611101610071. The reversal of 1611101610043 is 3400161011161.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1611101610043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1611101110043) 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, 8351305 + ... + 8542042.

It is an arithmetic number, because the mean of its divisors is an integer number (402779649690).

Almost surely, 2^{1611101610043} is an apocalyptic number.

1611101610043 is a deficient number, since it is larger than the sum of its proper divisors (16988717).

1611101610043 is an equidigital number, since it uses as much as digits as its factorization.

1611101610043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16988716.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 1611101610043 in words is "one trillion, six hundred eleven billion, one hundred one million, six hundred ten thousand, forty-three".