611011601011 has 16 divisors (see below), whose sum is σ = 741357676224. Its totient is φ = 491595393024.

The previous prime is 611011600981. The next prime is 611011601021. The reversal of 611011601011 is 110106110116.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 611011601011 - 2⁷ = 611011600883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611011601011.

It is not an unprimeable number, because it can be changed into a prime (611011601021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6838390 + ... + 6927163.

It is an arithmetic number, because the mean of its divisors is an integer number (46334854764).

Almost surely, 2^611011601011 is an apocalyptic number.

611011601011 is a deficient number, since it is larger than the sum of its proper divisors (130346075213).

611011601011 is a wasteful number, since it uses less digits than its factorization.

611011601011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765950.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 611011601011 its reverse (110106110116), we get a palindrome (721117711127).

The spelling of 611011601011 in words is "six hundred eleven billion, eleven million, six hundred one thousand, eleven".