8661201224464 has 20 divisors (see below), whose sum is σ = 16901804552080. Its totient is φ = 4299445211040.

The previous prime is 8661201224449. The next prime is 8661201224471. The reversal of 8661201224464 is 4644221021668.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947210282 + ... + 1947214729.

It is an arithmetic number, because the mean of its divisors is an integer number (845090227604).

Almost surely, 2^{8661201224464} is an apocalyptic number.

It is an amenable number.

8661201224464 is a deficient number, since it is larger than the sum of its proper divisors (8240603327616).

8661201224464 is a wasteful number, since it uses less digits than its factorization.

8661201224464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894425158 (or 3894425152 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 8661201224464 in words is "eight trillion, six hundred sixty-one billion, two hundred one million, two hundred twenty-four thousand, four hundred sixty-four".