8661466944 has 112 divisors (see below), whose sum is σ = 27421880640. Its totient is φ = 2665059840.

The previous prime is 8661466907. The next prime is 8661466949. The reversal of 8661466944 is 4496641668.

It is a happy number.

8661466944 is a `hidden beast` number, since 86 + 61 + 466 + 9 + 44 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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 not an unprimeable number, because it can be changed into a prime (8661466949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170322 + ... + 215249.

It is an arithmetic number, because the mean of its divisors is an integer number (244838220).

Almost surely, 2^8661466944 is an apocalyptic number.

It is an amenable number.

8661466944 is an abundant number, since it is smaller than the sum of its proper divisors (18760413696).

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

8661466944 is a wasteful number, since it uses less digits than its factorization.

8661466944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385605 (or 385589 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The square root of 8661466944 is about 93067.0024444755. The cubic root of 8661466944 is about 2053.6691729682.

The spelling of 8661466944 in words is "eight billion, six hundred sixty-one million, four hundred sixty-six thousand, nine hundred forty-four".