2611215126 has 96 divisors (see below), whose sum is σ = 6327659520. Its totient is φ = 772804800.

The previous prime is 2611215107. The next prime is 2611215127. The reversal of 2611215126 is 6215121162.

2611215126 is a `hidden beast` number, since 2 + 611 + 21 + 5 + 1 + 26 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2611215126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2611215127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1297461 + ... + 1299471.

It is an arithmetic number, because the mean of its divisors is an integer number (65913120).

Almost surely, 2^2611215126 is an apocalyptic number.

2611215126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2611215126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3163829760).

2611215126 is an abundant number, since it is smaller than the sum of its proper divisors (3716444394).

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

2611215126 is a wasteful number, since it uses less digits than its factorization.

2611215126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242 (or 2239 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 2611215126 is about 51100.0501565312. The cubic root of 2611215126 is about 1377.0431555213.

Adding to 2611215126 its reverse (6215121162), we get a palindrome (8826336288).

The spelling of 2611215126 in words is "two billion, six hundred eleven million, two hundred fifteen thousand, one hundred twenty-six".