65434665 has 16 divisors (see below), whose sum is σ = 106171776. Its totient is φ = 34406400.

The previous prime is 65434661. The next prime is 65434741. The reversal of 65434665 is 56643456.

It is not a de Polignac number, because 65434665 - 2² = 65434661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65434661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29656 + ... + 31785.

It is an arithmetic number, because the mean of its divisors is an integer number (6635736).

Almost surely, 2^65434665 is an apocalyptic number.

It is an amenable number.

65434665 is a deficient number, since it is larger than the sum of its proper divisors (40737111).

65434665 is a wasteful number, since it uses less digits than its factorization.

65434665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61520.

The product of its digits is 259200, while the sum is 39.

The square root of 65434665 is about 8089.1696112765. The cubic root of 65434665 is about 402.9668258728.

The spelling of 65434665 in words is "sixty-five million, four hundred thirty-four thousand, six hundred sixty-five".