9956655341111 has 16 divisors (see below), whose sum is σ = 10450811917728. Its totient is φ = 9476098761600.

The previous prime is 9956655341089. The next prime is 9956655341119. The reversal of 9956655341111 is 1111435566599.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9956655341111 - 2²⁶ = 9956588232247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9956655341119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11777825 + ... + 12594858.

It is an arithmetic number, because the mean of its divisors is an integer number (653175744858).

Almost surely, 2^{9956655341111} is an apocalyptic number.

9956655341111 is a deficient number, since it is larger than the sum of its proper divisors (494156576617).

9956655341111 is a wasteful number, since it uses less digits than its factorization.

9956655341111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24372962.

The product of its digits is 4374000, while the sum is 56.

The spelling of 9956655341111 in words is "nine trillion, nine hundred fifty-six billion, six hundred fifty-five million, three hundred forty-one thousand, one hundred eleven".