65206465 has 4 divisors (see below), whose sum is σ = 78247764. Its totient is φ = 52165168.

The previous prime is 65206459. The next prime is 65206501. The reversal of 65206465 is 56460256.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45643536 + 19562929 = 6756^2 + 4423^2 .

It is a cyclic number.

It is not a de Polignac number, because 65206465 - 2³ = 65206457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65206465.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6520642 + ... + 6520651.

It is an arithmetic number, because the mean of its divisors is an integer number (19561941).

Almost surely, 2^65206465 is an apocalyptic number.

It is an amenable number.

65206465 is a deficient number, since it is larger than the sum of its proper divisors (13041299).

65206465 is a wasteful number, since it uses less digits than its factorization.

65206465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041298.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 65206465 is about 8075.0520122164. The cubic root of 65206465 is about 402.4978382920.

The spelling of 65206465 in words is "sixty-five million, two hundred six thousand, four hundred sixty-five".