2664043906085 has 8 divisors (see below), whose sum is σ = 3197737528440. Its totient is φ = 2130645230784.

The previous prime is 2664043906063. The next prime is 2664043906099. The reversal of 2664043906085 is 5806093404662.

It can be written as a sum of positive squares in 4 ways, for example, as 487763956801 + 2176279949284 = 698401^2 + 1475222^2 .

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 2664043906085 - 2¹⁴ = 2664043889701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73716890 + ... + 73753019.

It is an arithmetic number, because the mean of its divisors is an integer number (399717191055).

Almost surely, 2^{2664043906085} is an apocalyptic number.

It is an amenable number.

2664043906085 is a deficient number, since it is larger than the sum of its proper divisors (533693622355).

2664043906085 is a wasteful number, since it uses less digits than its factorization.

2664043906085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147473527.

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 2664043906085 in words is "two trillion, six hundred sixty-four billion, forty-three million, nine hundred six thousand, eighty-five".