2664912173665 has 32 divisors (see below), whose sum is σ = 3672848957184. Its totient is φ = 1818315959040.

The previous prime is 2664912173639. The next prime is 2664912173689. The reversal of 2664912173665 is 5663712194662.

It is not a de Polignac number, because 2664912173665 - 2⁹ = 2664912173153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36571047 + ... + 36643843.

It is an arithmetic number, because the mean of its divisors is an integer number (114776529912).

Almost surely, 2^{2664912173665} is an apocalyptic number.

It is an amenable number.

2664912173665 is a deficient number, since it is larger than the sum of its proper divisors (1007936783519).

2664912173665 is a wasteful number, since it uses less digits than its factorization.

2664912173665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77977.

The product of its digits is 19595520, while the sum is 58.

The spelling of 2664912173665 in words is "two trillion, six hundred sixty-four billion, nine hundred twelve million, one hundred seventy-three thousand, six hundred sixty-five".