2007065605721 has 4 divisors (see below), whose sum is σ = 2189526115344. Its totient is φ = 1824605096100.

The previous prime is 2007065605711. The next prime is 2007065605729. The reversal of 2007065605721 is 1275065607002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2007065605721 - 2¹⁰ = 2007065604697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2007065605729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91230254795 + ... + 91230254816.

It is an arithmetic number, because the mean of its divisors is an integer number (547381528836).

Almost surely, 2^{2007065605721} is an apocalyptic number.

It is an amenable number.

2007065605721 is a deficient number, since it is larger than the sum of its proper divisors (182460509623).

2007065605721 is a wasteful number, since it uses less digits than its factorization.

2007065605721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182460509622.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 2007065605721 in words is "two trillion, seven billion, sixty-five million, six hundred five thousand, seven hundred twenty-one".