2164016266165 has 8 divisors (see below), whose sum is σ = 2796574867128. Its totient is φ = 1598042781120.

The previous prime is 2164016266157. The next prime is 2164016266219. The reversal of 2164016266165 is 5616626104612.

It can be written as a sum of positive squares in 4 ways, for example, as 4626801 + 2164011639364 = 2151^2 + 1471058^2 .

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

It is not a de Polignac number, because 2164016266165 - 2³ = 2164016266157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16646278906 + ... + 16646279035.

It is an arithmetic number, because the mean of its divisors is an integer number (349571858391).

Almost surely, 2^{2164016266165} is an apocalyptic number.

It is an amenable number.

2164016266165 is a deficient number, since it is larger than the sum of its proper divisors (632558600963).

2164016266165 is a wasteful number, since it uses less digits than its factorization.

2164016266165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33292557959.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 2164016266165 in words is "two trillion, one hundred sixty-four billion, sixteen million, two hundred sixty-six thousand, one hundred sixty-five".