164344765 has 32 divisors (see below), whose sum is σ = 217728000. Its totient is φ = 118352640.

The previous prime is 164344757. The next prime is 164344771. The reversal of 164344765 is 567443461.

It is not a de Polignac number, because 164344765 - 2³ = 164344757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687516 + ... + 687754.

It is an arithmetic number, because the mean of its divisors is an integer number (6804000).

Almost surely, 2^164344765 is an apocalyptic number.

It is an amenable number.

164344765 is a deficient number, since it is larger than the sum of its proper divisors (53383235).

164344765 is a wasteful number, since it uses less digits than its factorization.

164344765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477.

The product of its digits is 241920, while the sum is 40.

The square root of 164344765 is about 12819.7022196305. The cubic root of 164344765 is about 547.7536643479.

The spelling of 164344765 in words is "one hundred sixty-four million, three hundred forty-four thousand, seven hundred sixty-five".