161353097203 has 32 divisors (see below), whose sum is σ = 176301733248. Its totient is φ = 147052339200.

The previous prime is 161353097167. The next prime is 161353097327. The reversal of 161353097203 is 302790353161.

It is a de Polignac number, because none of the positive numbers 2^k-161353097203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161353097803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212027343 + ... + 212028103.

It is an arithmetic number, because the mean of its divisors is an integer number (5509429164).

Almost surely, 2^161353097203 is an apocalyptic number.

161353097203 is a deficient number, since it is larger than the sum of its proper divisors (14948636045).

161353097203 is a wasteful number, since it uses less digits than its factorization.

161353097203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983.

The product of its (nonzero) digits is 102060, while the sum is 40.

The spelling of 161353097203 in words is "one hundred sixty-one billion, three hundred fifty-three million, ninety-seven thousand, two hundred three".