4145655671 has 4 divisors (see below), whose sum is σ = 4242066312. Its totient is φ = 4049245032.

The previous prime is 4145655667. The next prime is 4145655719. The reversal of 4145655671 is 1765565414.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4145655671 - 2² = 4145655667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145655971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48205256 + ... + 48205341.

It is an arithmetic number, because the mean of its divisors is an integer number (1060516578).

Almost surely, 2^4145655671 is an apocalyptic number.

4145655671 is a deficient number, since it is larger than the sum of its proper divisors (96410641).

4145655671 is an equidigital number, since it uses as much as digits as its factorization.

4145655671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96410640.

The product of its digits is 504000, while the sum is 44.

The square root of 4145655671 is about 64386.7662722706. The cubic root of 4145655671 is about 1606.4396293736.

The spelling of 4145655671 in words is "four billion, one hundred forty-five million, six hundred fifty-five thousand, six hundred seventy-one".