164400473143 has 4 divisors (see below), whose sum is σ = 164511033120. Its totient is φ = 164289913168.

The previous prime is 164400473141. The next prime is 164400473179. The reversal of 164400473143 is 341374004461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164400473143 - 2¹ = 164400473141 is a prime.

It is a super-3 number, since 3×164400473143³ (a number of 35 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 (164400473141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55277758 + ... + 55280731.

It is an arithmetic number, because the mean of its divisors is an integer number (41127758280).

Almost surely, 2^164400473143 is an apocalyptic number.

164400473143 is a deficient number, since it is larger than the sum of its proper divisors (110559977).

164400473143 is a wasteful number, since it uses less digits than its factorization.

164400473143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110559976.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 164400473143 in words is "one hundred sixty-four billion, four hundred million, four hundred seventy-three thousand, one hundred forty-three".