534072666561 has 16 divisors (see below), whose sum is σ = 813841206144. Its totient is φ = 305178309504.

The previous prime is 534072666521. The next prime is 534072666599. The reversal of 534072666561 is 165666270435.

It is not a de Polignac number, because 534072666561 - 2¹⁰ = 534072665537 is a prime.

It is a super-2 number, since 2×534072666561² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (534072666521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 963861 + ... + 1413213.

It is an arithmetic number, because the mean of its divisors is an integer number (50865075384).

Almost surely, 2^534072666561 is an apocalyptic number.

It is an amenable number.

534072666561 is a deficient number, since it is larger than the sum of its proper divisors (279768539583).

534072666561 is a wasteful number, since it uses less digits than its factorization.

534072666561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505960.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 534072666561 in words is "five hundred thirty-four billion, seventy-two million, six hundred sixty-six thousand, five hundred sixty-one".