161567254167 has 32 divisors (see below), whose sum is σ = 247797688320. Its totient is φ = 92607642720.

The previous prime is 161567254153. The next prime is 161567254237. The reversal of 161567254167 is 761452765161.

161567254167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161567254167 - 2⁷ = 161567254039 is a prime.

It is a super-2 number, since 2×161567254167² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161567254127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148558 + ... + 587540.

It is an arithmetic number, because the mean of its divisors is an integer number (7743677760).

Almost surely, 2^161567254167 is an apocalyptic number.

161567254167 is a deficient number, since it is larger than the sum of its proper divisors (86230434153).

161567254167 is a wasteful number, since it uses less digits than its factorization.

161567254167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439603.

The product of its digits is 2116800, while the sum is 51.

The spelling of 161567254167 in words is "one hundred sixty-one billion, five hundred sixty-seven million, two hundred fifty-four thousand, one hundred sixty-seven".