7212017066065 has 16 divisors (see below), whose sum is σ = 9988694645760. Its totient is φ = 4896418939200.

The previous prime is 7212017065973. The next prime is 7212017066071. The reversal of 7212017066065 is 5606607102127.

It is not a de Polignac number, because 7212017066065 - 2⁹ = 7212017065553 is a prime.

It is a super-2 number, since 2×7212017066065² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020083745 + ... + 1020090814.

It is an arithmetic number, because the mean of its divisors is an integer number (624293415360).

Almost surely, 2^{7212017066065} is an apocalyptic number.

It is an amenable number.

7212017066065 is a deficient number, since it is larger than the sum of its proper divisors (2776677579695).

7212017066065 is a wasteful number, since it uses less digits than its factorization.

7212017066065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040174672.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 7212017066065 in words is "seven trillion, two hundred twelve billion, seventeen million, sixty-six thousand, sixty-five".