161041518355 has 8 divisors (see below), whose sum is σ = 193513468752. Its totient is φ = 128657450208.

The previous prime is 161041518349. The next prime is 161041518371. The reversal of 161041518355 is 553815140161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161041518355 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21966529 + ... + 21973858.

It is an arithmetic number, because the mean of its divisors is an integer number (24189183594).

Almost surely, 2^161041518355 is an apocalyptic number.

161041518355 is a deficient number, since it is larger than the sum of its proper divisors (32471950397).

161041518355 is an equidigital number, since it uses as much as digits as its factorization.

161041518355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43941125.

The product of its (nonzero) digits is 72000, while the sum is 40.

The spelling of 161041518355 in words is "one hundred sixty-one billion, forty-one million, five hundred eighteen thousand, three hundred fifty-five".