161160142577501 has 4 divisors (see below), whose sum is σ = 161166834464832. Its totient is φ = 161153450690172.

The previous prime is 161160142577449. The next prime is 161160142577507. The reversal of 161160142577501 is 105775241061161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161160142577501 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 (161160142577507) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3345907541 + ... + 3345955706.

It is an arithmetic number, because the mean of its divisors is an integer number (40291708616208).

Almost surely, 2^{161160142577501} is an apocalyptic number.

It is an amenable number.

161160142577501 is a deficient number, since it is larger than the sum of its proper divisors (6691887331).

161160142577501 is an equidigital number, since it uses as much as digits as its factorization.

161160142577501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691887330.

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 161160142577501 in words is "one hundred sixty-one trillion, one hundred sixty billion, one hundred forty-two million, five hundred seventy-seven thousand, five hundred one".