2611081100506 has 4 divisors (see below), whose sum is σ = 3916621650762. Its totient is φ = 1305540550252.

The previous prime is 2611081100479. The next prime is 2611081100527. The reversal of 2611081100506 is 6050011801162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2599701544881 + 11379555625 = 1612359^2 + 106675^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652770275125 + ... + 652770275128.

Almost surely, 2^{2611081100506} is an apocalyptic number.

2611081100506 is a deficient number, since it is larger than the sum of its proper divisors (1305540550256).

2611081100506 is a wasteful number, since it uses less digits than its factorization.

2611081100506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305540550255.

The product of its (nonzero) digits is 2880, while the sum is 31.

Adding to 2611081100506 its reverse (6050011801162), we get a palindrome (8661092901668).

The spelling of 2611081100506 in words is "two trillion, six hundred eleven billion, eighty-one million, one hundred thousand, five hundred six".