167125894493 has 2 divisors, whose sum is σ = 167125894494. Its totient is φ = 167125894492.

The previous prime is 167125894477. The next prime is 167125894511. The reversal of 167125894493 is 394498521761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151884016729 + 15241877764 = 389723^2 + 123458^2 .

It is a cyclic number.

It is not a de Polignac number, because 167125894493 - 2⁴ = 167125894477 is a prime.

It is a super-2 number, since 2×167125894493² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167125894093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83562947246 + 83562947247.

It is an arithmetic number, because the mean of its divisors is an integer number (83562947247).

Almost surely, 2^167125894493 is an apocalyptic number.

It is an amenable number.

167125894493 is a deficient number, since it is larger than the sum of its proper divisors (1).

167125894493 is an equidigital number, since it uses as much as digits as its factorization.

167125894493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 59.

The spelling of 167125894493 in words is "one hundred sixty-seven billion, one hundred twenty-five million, eight hundred ninety-four thousand, four hundred ninety-three".