66335465 has 24 divisors (see below), whose sum is σ = 93892680. Its totient is φ = 44851968.

The previous prime is 66335461. The next prime is 66335501. The reversal of 66335465 is 56453366.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3545689 + 62789776 = 1883^2 + 7924^2 .

It is not a de Polignac number, because 66335465 - 2² = 66335461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66335461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16031 + ... + 19739.

It is an arithmetic number, because the mean of its divisors is an integer number (3912195).

Almost surely, 2^66335465 is an apocalyptic number.

It is an amenable number.

66335465 is a deficient number, since it is larger than the sum of its proper divisors (27557215).

66335465 is a wasteful number, since it uses less digits than its factorization.

66335465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3794 counting only the distinct ones).

The product of its digits is 194400, while the sum is 38.

The square root of 66335465 is about 8144.6586791590. The cubic root of 66335465 is about 404.8075395057.

The spelling of 66335465 in words is "sixty-six million, three hundred thirty-five thousand, four hundred sixty-five".