164075681431 has 2 divisors, whose sum is σ = 164075681432. Its totient is φ = 164075681430.

The previous prime is 164075681411. The next prime is 164075681491. The reversal of 164075681431 is 134186570461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164075681431 - 2¹⁹ = 164075157143 is a prime.

It is a super-3 number, since 3×164075681431³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164075681411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82037840715 + 82037840716.

It is an arithmetic number, because the mean of its divisors is an integer number (82037840716).

Almost surely, 2^164075681431 is an apocalyptic number.

164075681431 is a deficient number, since it is larger than the sum of its proper divisors (1).

164075681431 is an equidigital number, since it uses as much as digits as its factorization.

164075681431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 164075681431 in words is "one hundred sixty-four billion, seventy-five million, six hundred eighty-one thousand, four hundred thirty-one".