9961663846712 has 32 divisors (see below), whose sum is σ = 18775799474880. Its totient is φ = 4954786467840.

The previous prime is 9961663846697. The next prime is 9961663846747. The reversal of 9961663846712 is 2176483661699.

9961663846712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 34505153 + ... + 34792655.

It is an arithmetic number, because the mean of its divisors is an integer number (586743733590).

Almost surely, 2^{9961663846712} is an apocalyptic number.

It is an amenable number.

9961663846712 is a deficient number, since it is larger than the sum of its proper divisors (8814135628168).

9961663846712 is a wasteful number, since it uses less digits than its factorization.

9961663846712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310143 (or 310139 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 68.

The spelling of 9961663846712 in words is "nine trillion, nine hundred sixty-one billion, six hundred sixty-three million, eight hundred forty-six thousand, seven hundred twelve".