3565665213 has 8 divisors (see below), whose sum is σ = 5186422176. Its totient is φ = 2161009200.

The previous prime is 3565665197. The next prime is 3565665251. The reversal of 3565665213 is 3125665653.

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

It is not a de Polignac number, because 3565665213 - 2⁴ = 3565665197 is a prime.

It is a super-2 number, since 2×3565665213² = 25427936822396670738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3565665253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54025198 + ... + 54025263.

It is an arithmetic number, because the mean of its divisors is an integer number (648302772).

Almost surely, 2^3565665213 is an apocalyptic number.

3565665213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3565665213 is a deficient number, since it is larger than the sum of its proper divisors (1620756963).

3565665213 is a wasteful number, since it uses less digits than its factorization.

3565665213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108050475.

The product of its digits is 486000, while the sum is 42.

The square root of 3565665213 is about 59713.1912813241. The cubic root of 3565665213 is about 1527.7308714639.

The spelling of 3565665213 in words is "three billion, five hundred sixty-five million, six hundred sixty-five thousand, two hundred thirteen".