164456645 has 8 divisors (see below), whose sum is σ = 197435904. Its totient is φ = 131506704.

The previous prime is 164456629. The next prime is 164456681. The reversal of 164456645 is 546654461.

164456645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 164456645 - 2⁴ = 164456629 is a prime.

It is a super-3 number, since 3×164456645³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

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, 7892 + ... + 19778.

It is an arithmetic number, because the mean of its divisors is an integer number (24679488).

Almost surely, 2^164456645 is an apocalyptic number.

It is an amenable number.

164456645 is a deficient number, since it is larger than the sum of its proper divisors (32979259).

164456645 is a wasteful number, since it uses less digits than its factorization.

164456645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14659.

The product of its digits is 345600, while the sum is 41.

The square root of 164456645 is about 12824.0650731350. The cubic root of 164456645 is about 547.8779331452.

The spelling of 164456645 in words is "one hundred sixty-four million, four hundred fifty-six thousand, six hundred forty-five".