4155505945 has 8 divisors (see below), whose sum is σ = 4988410560. Its totient is φ = 3323202480.

The previous prime is 4155505919. The next prime is 4155505973. The reversal of 4155505945 is 5495055514.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4155505945 - 2²⁵ = 4121951513 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134935 + ... + 162844.

It is an arithmetic number, because the mean of its divisors is an integer number (623551320).

Almost surely, 2^4155505945 is an apocalyptic number.

It is an amenable number.

4155505945 is a deficient number, since it is larger than the sum of its proper divisors (832904615).

4155505945 is a wasteful number, since it uses less digits than its factorization.

4155505945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300575.

The product of its (nonzero) digits is 450000, while the sum is 43.

The square root of 4155505945 is about 64463.2138897837. The cubic root of 4155505945 is about 1607.7109485191.

The spelling of 4155505945 in words is "four billion, one hundred fifty-five million, five hundred five thousand, nine hundred forty-five".