66070205060511 has 4 divisors (see below), whose sum is σ = 88093606747352. Its totient is φ = 44046803373672.

The previous prime is 66070205060501. The next prime is 66070205060569. The reversal of 66070205060511 is 11506050207066.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66070205060511 - 2¹¹ = 66070205058463 is a prime.

It is a super-2 number, since 2×66070205060511² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66070205060511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66070205060501) 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, 11011700843416 + ... + 11011700843421.

It is an arithmetic number, because the mean of its divisors is an integer number (22023401686838).

Almost surely, 2^{66070205060511} is an apocalyptic number.

66070205060511 is a deficient number, since it is larger than the sum of its proper divisors (22023401686841).

66070205060511 is a wasteful number, since it uses less digits than its factorization.

66070205060511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22023401686840.

The product of its (nonzero) digits is 75600, while the sum is 39.

Adding to 66070205060511 its reverse (11506050207066), we get a palindrome (77576255267577).

The spelling of 66070205060511 in words is "sixty-six trillion, seventy billion, two hundred five million, sixty thousand, five hundred eleven".