161461141045 has 8 divisors (see below), whose sum is σ = 193807466496. Its totient is φ = 129132848016.

The previous prime is 161461141013. The next prime is 161461141073. The reversal of 161461141045 is 540141164161.

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

It is a cyclic number.

It is not a de Polignac number, because 161461141045 - 2⁵ = 161461141013 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 161461141045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4488397 + ... + 4524226.

It is an arithmetic number, because the mean of its divisors is an integer number (24225933312).

Almost surely, 2^161461141045 is an apocalyptic number.

It is an amenable number.

161461141045 is a deficient number, since it is larger than the sum of its proper divisors (32346325451).

161461141045 is an equidigital number, since it uses as much as digits as its factorization.

161461141045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016211.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 161461141045 in words is "one hundred sixty-one billion, four hundred sixty-one million, one hundred forty-one thousand, forty-five".