3665005155 has 48 divisors (see below), whose sum is σ = 7276651200. Its totient is φ = 1671634944.

The previous prime is 3665005153. The next prime is 3665005159. The reversal of 3665005155 is 5515005663.

It is not a de Polignac number, because 3665005155 - 2¹ = 3665005153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3665005153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128479 + ... + 154391.

It is an arithmetic number, because the mean of its divisors is an integer number (151596900).

Almost surely, 2^3665005155 is an apocalyptic number.

3665005155 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3665005155 is a deficient number, since it is larger than the sum of its proper divisors (3611646045).

3665005155 is a wasteful number, since it uses less digits than its factorization.

3665005155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26380 (or 26377 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 3665005155 is about 60539.2860463352. The cubic root of 3665005155 is about 1541.7887175379.

The spelling of 3665005155 in words is "three billion, six hundred sixty-five million, five thousand, one hundred fifty-five".