11631655613611 has 16 divisors (see below), whose sum is σ = 12731141351520. Its totient is φ = 10539225169920.

The previous prime is 11631655613609. The next prime is 11631655613653.

11631655613611 is nontrivially palindromic in base 10.

11631655613611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11631655613611 - 2¹ = 11631655613609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11631655613671) 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, 4066191 + ... + 6308503.

It is an arithmetic number, because the mean of its divisors is an integer number (795696334470).

Almost surely, 2^{11631655613611} is an apocalyptic number.

11631655613611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11631655613611 is a deficient number, since it is larger than the sum of its proper divisors (1099485737909).

11631655613611 is a wasteful number, since it uses less digits than its factorization.

11631655613611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243886.

The product of its digits is 291600, while the sum is 46.

It can be divided in two parts, 1163165 and 5613611, that added together give a palindrome (6776776).

The spelling of 11631655613611 in words is "eleven trillion, six hundred thirty-one billion, six hundred fifty-five million, six hundred thirteen thousand, six hundred eleven".