161606010565167 has 64 divisors (see below), whose sum is σ = 253283944218624. Its totient is φ = 89733344722560.

The previous prime is 161606010565133. The next prime is 161606010565169. The reversal of 161606010565167 is 761565010606161.

It is not a de Polignac number, because 161606010565167 - 2¹⁴ = 161606010548783 is a prime.

It is a super-2 number, since 2×161606010565167² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161606010565169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2648944378 + ... + 2649005384.

It is an arithmetic number, because the mean of its divisors is an integer number (3957561628416).

Almost surely, 2^{161606010565167} is an apocalyptic number.

161606010565167 is a deficient number, since it is larger than the sum of its proper divisors (91677933653457).

161606010565167 is a wasteful number, since it uses less digits than its factorization.

161606010565167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76148.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 161606010565167 in words is "one hundred sixty-one trillion, six hundred six billion, ten million, five hundred sixty-five thousand, one hundred sixty-seven".