2111266542436 has 6 divisors (see below), whose sum is σ = 3694716449270. Its totient is φ = 1055633271216.

The previous prime is 2111266542397. The next prime is 2111266542439. The reversal of 2111266542436 is 6342456621112.

It can be written as a sum of positive squares in only one way, i.e., 1597670720100 + 513595822336 = 1263990^2 + 716656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2111266542392 and 2111266542401.

It is not an unprimeable number, because it can be changed into a prime (2111266542439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263908317801 + ... + 263908317808.

Almost surely, 2^{2111266542436} is an apocalyptic number.

It is an amenable number.

2111266542436 is a deficient number, since it is larger than the sum of its proper divisors (1583449906834).

2111266542436 is a wasteful number, since it uses less digits than its factorization.

2111266542436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527816635613 (or 527816635611 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 2111266542436 in words is "two trillion, one hundred eleven billion, two hundred sixty-six million, five hundred forty-two thousand, four hundred thirty-six".