161066565150203 has 8 divisors (see below), whose sum is σ = 161531212227840. Its totient is φ = 160601920822120.

The previous prime is 161066565150187. The next prime is 161066565150229. The reversal of 161066565150203 is 302051565660161.

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 161066565150203 - 2⁴ = 161066565150187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161066565180203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206853338 + ... + 207630528.

It is an arithmetic number, because the mean of its divisors is an integer number (20191401528480).

Almost surely, 2^{161066565150203} is an apocalyptic number.

161066565150203 is a deficient number, since it is larger than the sum of its proper divisors (464647077637).

161066565150203 is an equidigital number, since it uses as much as digits as its factorization.

161066565150203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374777.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 161066565150203 in words is "one hundred sixty-one trillion, sixty-six billion, five hundred sixty-five million, one hundred fifty thousand, two hundred three".