167347264561 has 3 divisors (see below), whose sum is σ = 167347673643. Its totient is φ = 167346855480.

The previous prime is 167347264543. The next prime is 167347264571. The reversal of 167347264561 is 165462743761.

The square root of 167347264561 is 409081.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 47575898161 + 119771366400 = 218119^2 + 346080^2 .

It is not a de Polignac number, because 167347264561 - 2⁷ = 167347264433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 167347264499 and 167347264508.

It is not an unprimeable number, because it can be changed into a prime (167347264571) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 204541 + ... + 613621.

It is an arithmetic number, because the mean of its divisors is an integer number (55782557881).

Almost surely, 2^167347264561 is an apocalyptic number.

167347264561 is the 409081-st square number.

167347264561 is the 204541-st centered octagonal number.

It is an amenable number.

167347264561 is a deficient number, since it is larger than the sum of its proper divisors (409082).

167347264561 is an frugal number, since it uses more digits than its factorization.

167347264561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818162 (or 409081 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 52.

The spelling of 167347264561 in words is "one hundred sixty-seven billion, three hundred forty-seven million, two hundred sixty-four thousand, five hundred sixty-one".