164723517822 has 16 divisors (see below), whose sum is σ = 329452730640. Its totient is φ = 54906890112.

The previous prime is 164723517799. The next prime is 164723517823. The reversal of 164723517822 is 228715327461.

It is a happy number.

164723517822 is digitally balanced in base 3, 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 (164723517823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200998 + ... + 608150.

It is an arithmetic number, because the mean of its divisors is an integer number (20590795665).

Almost surely, 2^164723517822 is an apocalyptic number.

164723517822 is an abundant number, since it is smaller than the sum of its proper divisors (164729212818).

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

164723517822 is a wasteful number, since it uses less digits than its factorization.

164723517822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474587.

The product of its digits is 1128960, while the sum is 48.

The spelling of 164723517822 in words is "one hundred sixty-four billion, seven hundred twenty-three million, five hundred seventeen thousand, eight hundred twenty-two".