8661752253440 has 176 divisors, whose sum is σ = 24410584064160. Its totient is φ = 2907441070080.

The previous prime is 8661752253433. The next prime is 8661752253457. The reversal of 8661752253440 is 443522571668.

It is a tau number, because it is divible by the number of its divisors (176).

It is an unprimeable number.

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, 5183045 + ... + 6647364.

Almost surely, 2^{8661752253440} is an apocalyptic number.

8661752253440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8661752253440 is an abundant number, since it is smaller than the sum of its proper divisors (15748831810720).

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

8661752253440 is a wasteful number, since it uses less digits than its factorization.

8661752253440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830458 (or 11830440 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 8661752253440 in words is "eight trillion, six hundred sixty-one billion, seven hundred fifty-two million, two hundred fifty-three thousand, four hundred forty".