66032465 has 4 divisors (see below), whose sum is σ = 79238964. Its totient is φ = 52825968.

The previous prime is 66032423. The next prime is 66032489. The reversal of 66032465 is 56423066.

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 42915601 + 23116864 = 6551^2 + 4808^2 .

It is a cyclic number.

It is not a de Polignac number, because 66032465 - 2⁶ = 66032401 is a prime.

It is a Duffinian number.

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, 6603242 + ... + 6603251.

It is an arithmetic number, because the mean of its divisors is an integer number (19809741).

Almost surely, 2^66032465 is an apocalyptic number.

It is an amenable number.

66032465 is a deficient number, since it is larger than the sum of its proper divisors (13206499).

66032465 is a wasteful number, since it uses less digits than its factorization.

66032465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13206498.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 66032465 is about 8126.0362416125. The cubic root of 66032465 is about 404.1902532497.

The spelling of 66032465 in words is "sixty-six million, thirty-two thousand, four hundred sixty-five".