3665523606 has 16 divisors (see below), whose sum is σ = 7395925104. Its totient is φ = 1211028224.

The previous prime is 3665523583. The next prime is 3665523623. The reversal of 3665523606 is 6063255663.

It is a super-2 number, since 2×3665523606² = 26872126612286486472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2702511 + ... + 2703866.

It is an arithmetic number, because the mean of its divisors is an integer number (462245319).

Almost surely, 2^3665523606 is an apocalyptic number.

3665523606 is an abundant number, since it is smaller than the sum of its proper divisors (3730401498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3665523606 is a wasteful number, since it uses less digits than its factorization.

3665523606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406495.

The product of its (nonzero) digits is 583200, while the sum is 42.

The square root of 3665523606 is about 60543.5678334206. The cubic root of 3665523606 is about 1541.8614144992.

The spelling of 3665523606 in words is "three billion, six hundred sixty-five million, five hundred twenty-three thousand, six hundred six".