163747296200161 has 4 divisors (see below), whose sum is σ = 164019754264324. Its totient is φ = 163474838136000.

The previous prime is 163747296200099. The next prime is 163747296200291. The reversal of 163747296200161 is 161002692747361.

163747296200161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64403835040000 + 99343461160161 = 8025200^2 + 9967119^2 .

It is a cyclic number.

It is not a de Polignac number, because 163747296200161 - 2³⁵ = 163712936461793 is a prime.

It is a super-2 number, since 2×163747296200161² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163747296210161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136229031180 + ... + 136229032381.

It is an arithmetic number, because the mean of its divisors is an integer number (41004938566081).

Almost surely, 2^{163747296200161} is an apocalyptic number.

It is an amenable number.

163747296200161 is a deficient number, since it is larger than the sum of its proper divisors (272458064163).

163747296200161 is an equidigital number, since it uses as much as digits as its factorization.

163747296200161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272458064162.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 163747296200161 in words is "one hundred sixty-three trillion, seven hundred forty-seven billion, two hundred ninety-six million, two hundred thousand, one hundred sixty-one".