167271106621 has 4 divisors (see below), whose sum is σ = 167541335200. Its totient is φ = 167000878044.

The previous prime is 167271106591. The next prime is 167271106663. The reversal of 167271106621 is 126601172761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 167271106621 - 2¹³ = 167271098429 is a prime.

It is a super-2 number, since 2×167271106621² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167271103621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135113361 + ... + 135114598.

It is an arithmetic number, because the mean of its divisors is an integer number (41885333800).

Almost surely, 2^167271106621 is an apocalyptic number.

It is an amenable number.

167271106621 is a deficient number, since it is larger than the sum of its proper divisors (270228579).

167271106621 is an equidigital number, since it uses as much as digits as its factorization.

167271106621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270228578.

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 167271106621 in words is "one hundred sixty-seven billion, two hundred seventy-one million, one hundred six thousand, six hundred twenty-one".