164705887143 has 18 divisors (see below), whose sum is σ = 271900750472. Its totient is φ = 94115809080.

The previous prime is 164705887111. The next prime is 164705887163. The reversal of 164705887143 is 341788507461.

164705887143 is a `hidden beast` number, since 1 + 6 + 47 + 0 + 588 + 7 + 14 + 3 = 666.

It is not a de Polignac number, because 164705887143 - 2⁵ = 164705887111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164705887143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164705887163) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3195688 + ... + 3246818.

Almost surely, 2^164705887143 is an apocalyptic number.

164705887143 is a deficient number, since it is larger than the sum of its proper divisors (107194863329).

164705887143 is an frugal number, since it uses more digits than its factorization.

164705887143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102275 (or 51141 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 164705887143 in words is "one hundred sixty-four billion, seven hundred five million, eight hundred eighty-seven thousand, one hundred forty-three".