156201665167161 has 16 divisors (see below), whose sum is σ = 239389525161600. Its totient is φ = 100543600566864.

The previous prime is 156201665167153. The next prime is 156201665167187. The reversal of 156201665167161 is 161761566102651.

156201665167161 is a `hidden beast` number, since 1 + 5 + 6 + 2 + 0 + 1 + 66 + 516 + 7 + 1 + 61 = 666.

It is not a de Polignac number, because 156201665167161 - 2³ = 156201665167153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 156201665167098 and 156201665167107.

It is not an unprimeable number, because it can be changed into a prime (156201665167151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99745634701 + ... + 99745636266.

It is an arithmetic number, because the mean of its divisors is an integer number (14961845322600).

Almost surely, 2^{156201665167161} is an apocalyptic number.

It is an amenable number.

156201665167161 is a deficient number, since it is larger than the sum of its proper divisors (83187859994439).

156201665167161 is a wasteful number, since it uses less digits than its factorization.

156201665167161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199491271005 (or 199491270999 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 156201665167161 in words is "one hundred fifty-six trillion, two hundred one billion, six hundred sixty-five million, one hundred sixty-seven thousand, one hundred sixty-one".