3665416025 has 24 divisors (see below), whose sum is σ = 4677450624. Its totient is φ = 2847915200.

The previous prime is 3665416021. The next prime is 3665416147. The reversal of 3665416025 is 5206145663.

It is a happy number.

It is not a de Polignac number, because 3665416025 - 2² = 3665416021 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3665416025.

It is not an unprimeable number, because it can be changed into a prime (3665416021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142019 + ... + 165831.

It is an arithmetic number, because the mean of its divisors is an integer number (194893776).

Almost surely, 2^3665416025 is an apocalyptic number.

It is an amenable number.

3665416025 is a deficient number, since it is larger than the sum of its proper divisors (1012034599).

3665416025 is a wasteful number, since it uses less digits than its factorization.

3665416025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24001 (or 23996 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 3665416025 is about 60542.6793675338. The cubic root of 3665416025 is about 1541.8463301044.

The spelling of 3665416025 in words is "three billion, six hundred sixty-five million, four hundred sixteen thousand, twenty-five".