11661454530 has 96 divisors (see below), whose sum is σ = 33103287360. Its totient is φ = 2824698240.

The previous prime is 11661454501. The next prime is 11661454537. The reversal of 11661454530 is 3545416611.

11661454530 is a `hidden beast` number, since 1 + 1 + 6 + 614 + 5 + 4 + 5 + 30 = 666.

11661454530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11661454537) 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 47 ways as a sum of consecutive naturals, for example, 1410589 + ... + 1418831.

It is an arithmetic number, because the mean of its divisors is an integer number (344825910).

Almost surely, 2^11661454530 is an apocalyptic number.

11661454530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11661454530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16551643680).

11661454530 is an abundant number, since it is smaller than the sum of its proper divisors (21441832830).

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

11661454530 is a wasteful number, since it uses less digits than its factorization.

11661454530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696 (or 9693 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 11661454530 in words is "eleven billion, six hundred sixty-one million, four hundred fifty-four thousand, five hundred thirty".