66632265 has 96 divisors (see below), whose sum is σ = 146105856. Its totient is φ = 27371520.

The previous prime is 66632263. The next prime is 66632303. The reversal of 66632265 is 56223666.

It is not a de Polignac number, because 66632265 - 2¹ = 66632263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66632261) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 122895 + ... + 123435.

It is an arithmetic number, because the mean of its divisors is an integer number (1521936).

Almost surely, 2^66632265 is an apocalyptic number.

It is an amenable number.

66632265 is an abundant number, since it is smaller than the sum of its proper divisors (79473591).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66632265 is a wasteful number, since it uses less digits than its factorization.

66632265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 596 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 66632265 is about 8162.8588741935. The cubic root of 66632265 is about 405.4103750760.

The spelling of 66632265 in words is "sixty-six million, six hundred thirty-two thousand, two hundred sixty-five".