12847580666816 has 56 divisors (see below), whose sum is σ = 29222936317536. Its totient is φ = 5489767342080.

The previous prime is 12847580666761. The next prime is 12847580666827. The reversal of 12847580666816 is 61866608574821.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-3 number, since 3×12847580666816³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42397445 + ... + 42699396.

Almost surely, 2^{12847580666816} is an apocalyptic number.

12847580666816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12847580666816 is an abundant number, since it is smaller than the sum of its proper divisors (16375355650720).

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

12847580666816 is an equidigital number, since it uses as much as digits as its factorization.

12847580666816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85097197 (or 85097187 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 68.

The spelling of 12847580666816 in words is "twelve trillion, eight hundred forty-seven billion, five hundred eighty million, six hundred sixty-six thousand, eight hundred sixteen".