65204965 has 16 divisors (see below), whose sum is σ = 91607040. Its totient is φ = 43620480.

The previous prime is 65204957. The next prime is 65205011. The reversal of 65204965 is 56940256.

It is not a de Polignac number, because 65204965 - 2³ = 65204957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21285 + ... + 24154.

It is an arithmetic number, because the mean of its divisors is an integer number (5725440).

Almost surely, 2^65204965 is an apocalyptic number.

It is an amenable number.

65204965 is a deficient number, since it is larger than the sum of its proper divisors (26402075).

65204965 is a wasteful number, since it uses less digits than its factorization.

65204965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45492.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 65204965 is about 8074.9591330235. The cubic root of 65204965 is about 402.4947519345.

The spelling of 65204965 in words is "sixty-five million, two hundred four thousand, nine hundred sixty-five".