161350303604113 has 16 divisors (see below), whose sum is σ = 177053502885840. Its totient is φ = 146117754491904.

The previous prime is 161350303604107. The next prime is 161350303604159. The reversal of 161350303604113 is 311406303053161.

It can be written as a sum of positive squares in 8 ways, for example, as 30543230187649 + 130807073416464 = 5526593^2 + 11437092^2 .

It is not a de Polignac number, because 161350303604113 - 2³⁷ = 161212864650641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161350303674113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645453 + ... + 17975461.

It is an arithmetic number, because the mean of its divisors is an integer number (11065843930365).

Almost surely, 2^{161350303604113} is an apocalyptic number.

161350303604113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161350303604113 is a deficient number, since it is larger than the sum of its proper divisors (15703199281727).

161350303604113 is a wasteful number, since it uses less digits than its factorization.

161350303604113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17343588.

The product of its (nonzero) digits is 58320, while the sum is 37.

Adding to 161350303604113 its reverse (311406303053161), we get a palindrome (472756606657274).

The spelling of 161350303604113 in words is "one hundred sixty-one trillion, three hundred fifty billion, three hundred three million, six hundred four thousand, one hundred thirteen".