164621054166 has 32 divisors (see below), whose sum is σ = 345434366976. Its totient is φ = 52233012000.

The previous prime is 164621054131. The next prime is 164621054167. The reversal of 164621054166 is 661450126461.

It is a happy number.

164621054166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164621054167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7243240 + ... + 7265931.

It is an arithmetic number, because the mean of its divisors is an integer number (10794823968).

Almost surely, 2^164621054166 is an apocalyptic number.

164621054166 is an abundant number, since it is smaller than the sum of its proper divisors (180813312810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164621054166 is a wasteful number, since it uses less digits than its factorization.

164621054166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14509268.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 164621054166 in words is "one hundred sixty-four billion, six hundred twenty-one million, fifty-four thousand, one hundred sixty-six".