4016651665 has 8 divisors (see below), whose sum is σ = 5190749928. Its totient is φ = 2966142720.

The previous prime is 4016651657. The next prime is 4016651687. The reversal of 4016651665 is 5661566104.

It can be written as a sum of positive squares in 4 ways, for example, as 3682561 + 4012969104 = 1919^2 + 63348^2 .

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

It is not a de Polignac number, because 4016651665 - 2³ = 4016651657 is a prime.

It is a super-2 number, since 2×4016651665² = 32266981195894544450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30897256 + ... + 30897385.

It is an arithmetic number, because the mean of its divisors is an integer number (648843741).

Almost surely, 2^4016651665 is an apocalyptic number.

It is an amenable number.

4016651665 is a deficient number, since it is larger than the sum of its proper divisors (1174098263).

4016651665 is a wasteful number, since it uses less digits than its factorization.

4016651665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61794659.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 4016651665 is about 63377.0594537172. The cubic root of 4016651665 is about 1589.6007416230.

The spelling of 4016651665 in words is "four billion, sixteen million, six hundred fifty-one thousand, six hundred sixty-five".