167067570121 has 9 divisors (see below), whose sum is σ = 171720490599. Its totient is φ = 162537515784.

The previous prime is 167067570083. The next prime is 167067570127. The reversal of 167067570121 is 121075760761.

The square root of 167067570121 is 408739.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 149494356025 + 17573214096 = 386645^2 + 132564^2 .

It is not a de Polignac number, because 167067570121 - 2²⁷ = 166933352393 is a prime.

It is a super-2 number, since 2×167067570121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167067570127) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15117820 + ... + 15128866.

It is an arithmetic number, because the mean of its divisors is an integer number (19080054511).

Almost surely, 2^167067570121 is an apocalyptic number.

167067570121 is the 408739-th square number.

167067570121 is the 204370-th centered octagonal number.

It is an amenable number.

167067570121 is a deficient number, since it is larger than the sum of its proper divisors (4652920478).

167067570121 is an frugal number, since it uses more digits than its factorization.

167067570121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22168 (or 11084 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 43.

The spelling of 167067570121 in words is "one hundred sixty-seven billion, sixty-seven million, five hundred seventy thousand, one hundred twenty-one".