8661557703 has 8 divisors (see below), whose sum is σ = 11557792368. Its totient is φ = 5769847424.

The previous prime is 8661557699. The next prime is 8661557747. The reversal of 8661557703 is 3077551668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8661557703 - 2² = 8661557699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8661557753) 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 7 ways as a sum of consecutive naturals, for example, 1126626 + ... + 1134287.

It is an arithmetic number, because the mean of its divisors is an integer number (1444724046).

Almost surely, 2^8661557703 is an apocalyptic number.

8661557703 is a deficient number, since it is larger than the sum of its proper divisors (2896234665).

8661557703 is a wasteful number, since it uses less digits than its factorization.

8661557703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262193.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The square root of 8661557703 is about 93067.4900435163. The cubic root of 8661557703 is about 2053.6763460529.

The spelling of 8661557703 in words is "eight billion, six hundred sixty-one million, five hundred fifty-seven thousand, seven hundred three".