161165054993 has 8 divisors (see below), whose sum is σ = 161470329600. Its totient is φ = 160859912400.

The previous prime is 161165054957. The next prime is 161165055011. The reversal of 161165054993 is 399450561161.

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 161165054993 - 2¹⁴ = 161165038609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161165054093) 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, 2609318 + ... + 2670368.

It is an arithmetic number, because the mean of its divisors is an integer number (20183791200).

Almost surely, 2^161165054993 is an apocalyptic number.

It is an amenable number.

161165054993 is a deficient number, since it is larger than the sum of its proper divisors (305274607).

161165054993 is an equidigital number, since it uses as much as digits as its factorization.

161165054993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66007.

The product of its (nonzero) digits is 874800, while the sum is 50.

The spelling of 161165054993 in words is "one hundred sixty-one billion, one hundred sixty-five million, fifty-four thousand, nine hundred ninety-three".