4155505905 has 16 divisors (see below), whose sum is σ = 6650677440. Its totient is φ = 2215647168.

The previous prime is 4155505901. The next prime is 4155505909. The reversal of 4155505905 is 5095055514.

It is an interprime number because it is at equal distance from previous prime (4155505901) and next prime (4155505909).

It is not a de Polignac number, because 4155505905 - 2² = 4155505901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4155505901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19039 + ... + 93131.

It is an arithmetic number, because the mean of its divisors is an integer number (415667340).

Almost surely, 2^4155505905 is an apocalyptic number.

It is an amenable number.

4155505905 is a deficient number, since it is larger than the sum of its proper divisors (2495171535).

4155505905 is a wasteful number, since it uses less digits than its factorization.

4155505905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77840.

The product of its (nonzero) digits is 112500, while the sum is 39.

The square root of 4155505905 is about 64463.2135795292. The cubic root of 4155505905 is about 1607.7109433606.

The spelling of 4155505905 in words is "four billion, one hundred fifty-five million, five hundred five thousand, nine hundred five".