11668429944 has 128 divisors (see below), whose sum is σ = 34634952000. Its totient is φ = 3626975232.

The previous prime is 11668429939. The next prime is 11668429951. The reversal of 11668429944 is 44992486611.

11668429944 is a `hidden beast` number, since 116 + 68 + 429 + 9 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385672 + ... + 414824.

Almost surely, 2^11668429944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11668429944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17317476000).

11668429944 is an abundant number, since it is smaller than the sum of its proper divisors (22966522056).

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

11668429944 is a wasteful number, since it uses less digits than its factorization.

11668429944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29294 (or 29284 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 11668429944 in words is "eleven billion, six hundred sixty-eight million, four hundred twenty-nine thousand, nine hundred forty-four".