167901428171 has 2 divisors, whose sum is σ = 167901428172. Its totient is φ = 167901428170.

The previous prime is 167901428147. The next prime is 167901428197. The reversal of 167901428171 is 171824109761.

It is a weak prime.

It is an emirp because it is prime and its reverse (171824109761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 167901428171 - 2¹⁰ = 167901427147 is a prime.

It is a super-2 number, since 2×167901428171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (167901428371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83950714085 + 83950714086.

It is an arithmetic number, because the mean of its divisors is an integer number (83950714086).

Almost surely, 2^167901428171 is an apocalyptic number.

167901428171 is a deficient number, since it is larger than the sum of its proper divisors (1).

167901428171 is an equidigital number, since it uses as much as digits as its factorization.

167901428171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 47.

The spelling of 167901428171 in words is "one hundred sixty-seven billion, nine hundred one million, four hundred twenty-eight thousand, one hundred seventy-one".