9147966556 has 12 divisors (see below), whose sum is σ = 16851517480. Its totient is φ = 4333247280.

The previous prime is 9147966511. The next prime is 9147966557. The reversal of 9147966556 is 6556697419.

It is a happy number.

It is a super-2 number, since 2×9147966556² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9147966556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9147966557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60183915 + ... + 60184066.

Almost surely, 2^9147966556 is an apocalyptic number.

It is an amenable number.

9147966556 is a deficient number, since it is larger than the sum of its proper divisors (7703550924).

9147966556 is a wasteful number, since it uses less digits than its factorization.

9147966556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120368004 (or 120368002 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 58.

The square root of 9147966556 is about 95645.0027758900. The cubic root of 9147966556 is about 2091.4212806092.

The spelling of 9147966556 in words is "nine billion, one hundred forty-seven million, nine hundred sixty-six thousand, five hundred fifty-six".