164404166125532 has 12 divisors (see below), whose sum is σ = 287707380575160. Its totient is φ = 82202057389776.

The previous prime is 164404166125477. The next prime is 164404166125553. The reversal of 164404166125532 is 235521661404461.

It is a happy number.

It is a super-3 number, since 3×164404166125532³ (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 3 ways as a sum of consecutive naturals, for example, 21092543 + ... + 27815529.

It is an arithmetic number, because the mean of its divisors is an integer number (23975615047930).

Almost surely, 2^{164404166125532} is an apocalyptic number.

It is an amenable number.

164404166125532 is a deficient number, since it is larger than the sum of its proper divisors (123303214449628).

164404166125532 is a wasteful number, since it uses less digits than its factorization.

164404166125532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12836500 (or 12836498 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 164404166125532 in words is "one hundred sixty-four trillion, four hundred four billion, one hundred sixty-six million, one hundred twenty-five thousand, five hundred thirty-two".