11450331661 has 16 divisors (see below), whose sum is σ = 12054159360. Its totient is φ = 10855666800.

The previous prime is 11450331617. The next prime is 11450331677. The reversal of 11450331661 is 16613305411.

11450331661 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 11450331661 - 2¹⁹ = 11449807373 is a prime.

It is a super-2 number, since 2×11450331661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11450331961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660126 + ... + 1667008.

It is an arithmetic number, because the mean of its divisors is an integer number (753384960).

Almost surely, 2^11450331661 is an apocalyptic number.

It is an amenable number.

11450331661 is a deficient number, since it is larger than the sum of its proper divisors (603827699).

11450331661 is a wasteful number, since it uses less digits than its factorization.

11450331661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 11450331661 in words is "eleven billion, four hundred fifty million, three hundred thirty-one thousand, six hundred sixty-one".