65164403 has 4 divisors (see below), whose sum is σ = 65190168. Its totient is φ = 65138640.

The previous prime is 65164397. The next prime is 65164423. The reversal of 65164403 is 30446156.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65164403 - 2¹⁶ = 65098867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65164423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8618 + ... + 14303.

It is an arithmetic number, because the mean of its divisors is an integer number (16297542).

Almost surely, 2^65164403 is an apocalyptic number.

65164403 is a deficient number, since it is larger than the sum of its proper divisors (25765).

65164403 is a wasteful number, since it uses less digits than its factorization.

65164403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25764.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 65164403 is about 8072.4471506477. The cubic root of 65164403 is about 402.4112747606.

The spelling of 65164403 in words is "sixty-five million, one hundred sixty-four thousand, four hundred three".