945616570866 has 64 divisors (see below), whose sum is σ = 2354360722560. Its totient is φ = 278805862080.

The previous prime is 945616570859. The next prime is 945616570879. The reversal of 945616570866 is 668075616549.

945616570866 is a `hidden beast` number, since 9 + 4 + 5 + 616 + 5 + 7 + 0 + 8 + 6 + 6 = 666.

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, 21490821 + ... + 21534776.

It is an arithmetic number, because the mean of its divisors is an integer number (36786886290).

Almost surely, 2^945616570866 is an apocalyptic number.

945616570866 is an abundant number, since it is smaller than the sum of its proper divisors (1408744151694).

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

945616570866 is a wasteful number, since it uses less digits than its factorization.

945616570866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43025656 (or 43025650 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 945616570866 in words is "nine hundred forty-five billion, six hundred sixteen million, five hundred seventy thousand, eight hundred sixty-six".