2072664220769 has 16 divisors (see below), whose sum is σ = 2092750927680. Its totient is φ = 2052699485760.

The previous prime is 2072664220751. The next prime is 2072664220789. The reversal of 2072664220769 is 9670224662702.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2072664220769 - 2⁸ = 2072664220513 is a prime.

It is a super-2 number, since 2×2072664220769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2072664220769.

It is not an unprimeable number, because it can be changed into a prime (2072664220729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35068847 + ... + 35127899.

It is an arithmetic number, because the mean of its divisors is an integer number (130796932980).

Almost surely, 2^{2072664220769} is an apocalyptic number.

It is an amenable number.

2072664220769 is a deficient number, since it is larger than the sum of its proper divisors (20086706911).

2072664220769 is a wasteful number, since it uses less digits than its factorization.

2072664220769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60080.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 2072664220769 in words is "two trillion, seventy-two billion, six hundred sixty-four million, two hundred twenty thousand, seven hundred sixty-nine".