3665315306566 has 8 divisors (see below), whose sum is σ = 5499263879640. Its totient is φ = 1832227346688.

The previous prime is 3665315306551. The next prime is 3665315306579. The reversal of 3665315306566 is 6656035135663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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, 215142651 + ... + 215159686.

It is an arithmetic number, because the mean of its divisors is an integer number (687407984955).

Almost surely, 2^{3665315306566} is an apocalyptic number.

3665315306566 is a deficient number, since it is larger than the sum of its proper divisors (1833948573074).

3665315306566 is a wasteful number, since it uses less digits than its factorization.

3665315306566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430306598.

The product of its (nonzero) digits is 26244000, while the sum is 55.

The spelling of 3665315306566 in words is "three trillion, six hundred sixty-five billion, three hundred fifteen million, three hundred six thousand, five hundred sixty-six".