2126667706533 has 6 divisors (see below), whose sum is σ = 3071853353894. Its totient is φ = 1417778471016.

The previous prime is 2126667706531. The next prime is 2126667706543. The reversal of 2126667706533 is 3356077666212.

It can be written as a sum of positive squares in only one way, i.e., 2126367654849 + 300051684 = 1458207^2 + 17322^2 .

It is not a de Polignac number, because 2126667706533 - 2¹ = 2126667706531 is a prime.

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 2126667706533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126667706531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118148205910 + ... + 118148205927.

Almost surely, 2^{2126667706533} is an apocalyptic number.

It is an amenable number.

2126667706533 is a deficient number, since it is larger than the sum of its proper divisors (945185647361).

2126667706533 is a wasteful number, since it uses less digits than its factorization.

2126667706533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236296411843 (or 236296411840 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 2126667706533 in words is "two trillion, one hundred twenty-six billion, six hundred sixty-seven million, seven hundred six thousand, five hundred thirty-three".