3640514165 has 8 divisors (see below), whose sum is σ = 4369120440. Its totient is φ = 2912075712.

The previous prime is 3640514149. The next prime is 3640514167. The reversal of 3640514165 is 5614150463.

3640514165 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 603291844 + 3037222321 = 24562^2 + 55111^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3640514165 - 2⁴ = 3640514149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640514167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12107 + ... + 86183.

It is an arithmetic number, because the mean of its divisors is an integer number (546140055).

Almost surely, 2^3640514165 is an apocalyptic number.

It is an amenable number.

3640514165 is a deficient number, since it is larger than the sum of its proper divisors (728606275).

3640514165 is an equidigital number, since it uses as much as digits as its factorization.

3640514165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83911.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 3640514165 is about 60336.6734664748. The cubic root of 3640514165 is about 1538.3467619825.

The spelling of 3640514165 in words is "three billion, six hundred forty million, five hundred fourteen thousand, one hundred sixty-five".