3665255545 has 32 divisors (see below), whose sum is σ = 5135063040. Its totient is φ = 2459358720.

The previous prime is 3665255533. The next prime is 3665255563. The reversal of 3665255545 is 5455525663.

It is a happy number.

It is not a de Polignac number, because 3665255545 - 2⁵ = 3665255513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3665255495 and 3665255504.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 756280 + ... + 761110.

It is an arithmetic number, because the mean of its divisors is an integer number (160470720).

Almost surely, 2^3665255545 is an apocalyptic number.

3665255545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3665255545 is a deficient number, since it is larger than the sum of its proper divisors (1469807495).

3665255545 is a wasteful number, since it uses less digits than its factorization.

3665255545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305.

The product of its digits is 2700000, while the sum is 46.

The square root of 3665255545 is about 60541.3540069926. The cubic root of 3665255545 is about 1541.8238279647.

The spelling of 3665255545 in words is "three billion, six hundred sixty-five million, two hundred fifty-five thousand, five hundred forty-five".