164432178807 has 16 divisors (see below), whose sum is σ = 236145057120. Its totient is φ = 101173041792.

The previous prime is 164432178773. The next prime is 164432178809. The reversal of 164432178807 is 708871234461.

It is not a de Polignac number, because 164432178807 - 2⁸ = 164432178551 is a prime.

It is a super-3 number, since 3×164432178807³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164432178807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164432178809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80788 + ... + 579129.

It is an arithmetic number, because the mean of its divisors is an integer number (14759066070).

Almost surely, 2^164432178807 is an apocalyptic number.

164432178807 is a deficient number, since it is larger than the sum of its proper divisors (71712878313).

164432178807 is a wasteful number, since it uses less digits than its factorization.

164432178807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666322.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 164432178807 in words is "one hundred sixty-four billion, four hundred thirty-two million, one hundred seventy-eight thousand, eight hundred seven".