164406441065502 has 16 divisors (see below), whose sum is σ = 331829514078480. Its totient is φ = 54299375030592.

The previous prime is 164406441065491. The next prime is 164406441065527. The reversal of 164406441065502 is 205560144604461.

164406441065502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164406441065502³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125692997103 + ... + 125692998410.

It is an arithmetic number, because the mean of its divisors is an integer number (20739344629905).

Almost surely, 2^{164406441065502} is an apocalyptic number.

164406441065502 is an abundant number, since it is smaller than the sum of its proper divisors (167423073012978).

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

164406441065502 is a wasteful number, since it uses less digits than its factorization.

164406441065502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251385995627.

The product of its (nonzero) digits is 2764800, while the sum is 48.

Adding to 164406441065502 its reverse (205560144604461), we get a palindrome (369966585669963).

The spelling of 164406441065502 in words is "one hundred sixty-four trillion, four hundred six billion, four hundred forty-one million, sixty-five thousand, five hundred two".