65164623 has 8 divisors (see below), whose sum is σ = 91459200. Its totient is φ = 41156568.

The previous prime is 65164609. The next prime is 65164633. The reversal of 65164623 is 32646156.

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

It is not a de Polignac number, because 65164623 - 2⁶ = 65164559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65164633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571563 + ... + 571676.

It is an arithmetic number, because the mean of its divisors is an integer number (11432400).

Almost surely, 2^65164623 is an apocalyptic number.

65164623 is a deficient number, since it is larger than the sum of its proper divisors (26294577).

65164623 is a wasteful number, since it uses less digits than its factorization.

65164623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143261.

The product of its digits is 25920, while the sum is 33.

The square root of 65164623 is about 8072.4607772352. The cubic root of 65164623 is about 402.4117276172.

The spelling of 65164623 in words is "sixty-five million, one hundred sixty-four thousand, six hundred twenty-three".