161563075353 has 12 divisors (see below), whose sum is σ = 233631997248. Its totient is φ = 107587281240.

The previous prime is 161563075339. The next prime is 161563075361. The reversal of 161563075353 is 353570365161.

161563075353 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 630 + 7 + 5 + 3 + 5 + 3 = 666.

It is not a de Polignac number, because 161563075353 - 2⁸ = 161563075097 is a prime.

It is a super-2 number, since 2×161563075353² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161563075299 and 161563075308.

It is not an unprimeable number, because it can be changed into a prime (161563075313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10111213 + ... + 10127178.

It is an arithmetic number, because the mean of its divisors is an integer number (19469333104).

Almost surely, 2^161563075353 is an apocalyptic number.

It is an amenable number.

161563075353 is a deficient number, since it is larger than the sum of its proper divisors (72068921895).

161563075353 is a wasteful number, since it uses less digits than its factorization.

161563075353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20239284 (or 20239281 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 45.

The spelling of 161563075353 in words is "one hundred sixty-one billion, five hundred sixty-three million, seventy-five thousand, three hundred fifty-three".