66347365 has 16 divisors (see below), whose sum is σ = 91124352. Its totient is φ = 45428544.

The previous prime is 66347339. The next prime is 66347371. The reversal of 66347365 is 56374366.

It is not a de Polignac number, because 66347365 - 2²³ = 57958757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40747 + ... + 42343.

It is an arithmetic number, because the mean of its divisors is an integer number (5695272).

Almost surely, 2^66347365 is an apocalyptic number.

It is an amenable number.

66347365 is a deficient number, since it is larger than the sum of its proper divisors (24776987).

66347365 is a wasteful number, since it uses less digits than its factorization.

66347365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its digits is 272160, while the sum is 40.

The square root of 66347365 is about 8145.3891865276. The cubic root of 66347365 is about 404.8317443645.

The spelling of 66347365 in words is "sixty-six million, three hundred forty-seven thousand, three hundred sixty-five".