611006172111 has 6 divisors (see below), whose sum is σ = 882564470840. Its totient is φ = 407337448068.

The previous prime is 611006172053. The next prime is 611006172113. The reversal of 611006172111 is 111271600116.

611006172111 is a `hidden beast` number, since 6 + 1 + 10 + 0 + 617 + 21 + 11 = 666.

It is not a de Polignac number, because 611006172111 - 2¹³ = 611006163919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611006172113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33944787331 + ... + 33944787348.

Almost surely, 2^611006172111 is an apocalyptic number.

611006172111 is a deficient number, since it is larger than the sum of its proper divisors (271558298729).

611006172111 is a wasteful number, since it uses less digits than its factorization.

611006172111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67889574685 (or 67889574682 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

Adding to 611006172111 its reverse (111271600116), we get a palindrome (722277772227).

The spelling of 611006172111 in words is "six hundred eleven billion, six million, one hundred seventy-two thousand, one hundred eleven".