164454614445143 has 32 divisors (see below), whose sum is σ = 183303289396800. Its totient is φ = 146294468812800.

The previous prime is 164454614445103. The next prime is 164454614445161. The reversal of 164454614445143 is 341544416454461.

It is not a de Polignac number, because 164454614445143 - 2¹⁰ = 164454614444119 is a prime.

It is a super-3 number, since 3×164454614445143³ (a number of 44 digits) contains 333 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 (164454614445103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71999963 + ... + 74248931.

It is an arithmetic number, because the mean of its divisors is an integer number (5728227793650).

Almost surely, 2^{164454614445143} is an apocalyptic number.

164454614445143 is a deficient number, since it is larger than the sum of its proper divisors (18848674951657).

164454614445143 is a wasteful number, since it uses less digits than its factorization.

164454614445143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249843.

The product of its digits is 44236800, while the sum is 56.

The spelling of 164454614445143 in words is "one hundred sixty-four trillion, four hundred fifty-four billion, six hundred fourteen million, four hundred forty-five thousand, one hundred forty-three".