611012155266 has 12 divisors (see below), whose sum is σ = 1323859669782. Its totient is φ = 203670718416.

The previous prime is 611012155261. The next prime is 611012155297. The reversal of 611012155266 is 662551210116.

611012155266 is a `hidden beast` number, since 6 + 1 + 1 + 0 + 121 + 5 + 526 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 603230269041 + 7781886225 = 776679^2 + 88215^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 611012155266.

It is not an unprimeable number, because it can be changed into a prime (611012155261) 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 5 ways as a sum of consecutive naturals, for example, 16972559851 + ... + 16972559886.

Almost surely, 2^611012155266 is an apocalyptic number.

611012155266 is an abundant number, since it is smaller than the sum of its proper divisors (712847514516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611012155266 is a wasteful number, since it uses less digits than its factorization.

611012155266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33945119745 (or 33945119742 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 611012155266 in words is "six hundred eleven billion, twelve million, one hundred fifty-five thousand, two hundred sixty-six".