66465734 has 16 divisors (see below), whose sum is σ = 101424960. Its totient is φ = 32662080.

The previous prime is 66465719. The next prime is 66465739. The reversal of 66465734 is 43756466.

It is a junction number, because it is equal to n+sod(n) for n = 66465691 and 66465700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66465739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31187 + ... + 33249.

It is an arithmetic number, because the mean of its divisors is an integer number (6339060).

Almost surely, 2^66465734 is an apocalyptic number.

66465734 is a deficient number, since it is larger than the sum of its proper divisors (34959226).

66465734 is a wasteful number, since it uses less digits than its factorization.

66465734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335.

The product of its digits is 362880, while the sum is 41.

The square root of 66465734 is about 8152.6519611719. The cubic root of 66465734 is about 405.0723520588.

The spelling of 66465734 in words is "sixty-six million, four hundred sixty-five thousand, seven hundred thirty-four".