4620556665 has 24 divisors (see below), whose sum is σ = 8267321088. Its totient is φ = 2384802720.

The previous prime is 4620556651. The next prime is 4620556669. The reversal of 4620556665 is 5666550264.

It is a happy number.

It is not a de Polignac number, because 4620556665 - 2⁶ = 4620556601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4620556665.

It is not an unprimeable number, because it can be changed into a prime (4620556669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1654719 + ... + 1657508.

It is an arithmetic number, because the mean of its divisors is an integer number (344471712).

Almost surely, 2^4620556665 is an apocalyptic number.

4620556665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4620556665 is a deficient number, since it is larger than the sum of its proper divisors (3646764423).

4620556665 is a wasteful number, since it uses less digits than its factorization.

4620556665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312269 (or 3312266 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The square root of 4620556665 is about 67974.6766450566. The cubic root of 4620556665 is about 1665.5771989023.

The spelling of 4620556665 in words is "four billion, six hundred twenty million, five hundred fifty-six thousand, six hundred sixty-five".