9551945966616 has 96 divisors (see below), whose sum is σ = 26014890021120. Its totient is φ = 3166134220800.

The previous prime is 9551945966603. The next prime is 9551945966677. The reversal of 9551945966616 is 6166695491559.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227661096 + ... + 227703048.

It is an arithmetic number, because the mean of its divisors is an integer number (270988437720).

Almost surely, 2^{9551945966616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9551945966616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13007445010560).

9551945966616 is an abundant number, since it is smaller than the sum of its proper divisors (16462944054504).

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

9551945966616 is a wasteful number, since it uses less digits than its factorization.

9551945966616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59617 (or 59610 counting only the distinct ones).

The product of its digits is 472392000, while the sum is 72.

The spelling of 9551945966616 in words is "nine trillion, five hundred fifty-one billion, nine hundred forty-five million, nine hundred sixty-six thousand, six hundred sixteen".