164404323465 has 8 divisors (see below), whose sum is σ = 263046917568. Its totient is φ = 87682305840.

The previous prime is 164404323443. The next prime is 164404323481. The reversal of 164404323465 is 564323404461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164404323465 - 2¹⁰ = 164404322441 is a prime.

It is a super-3 number, since 3×164404323465³ (a number of 35 digits) contains 333 as substring.

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, 5480144101 + ... + 5480144130.

It is an arithmetic number, because the mean of its divisors is an integer number (32880864696).

Almost surely, 2^164404323465 is an apocalyptic number.

164404323465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164404323465 is a deficient number, since it is larger than the sum of its proper divisors (98642594103).

164404323465 is a wasteful number, since it uses less digits than its factorization.

164404323465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10960288239.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 164404323465 in words is "one hundred sixty-four billion, four hundred four million, three hundred twenty-three thousand, four hundred sixty-five".