55251644318156 has 48 divisors (see below), whose sum is σ = 113598517407648. Its totient is φ = 23181645312000.

The previous prime is 55251644318113. The next prime is 55251644318191. The reversal of 55251644318156 is 65181344615255.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13701806 + ... + 17269706.

It is an arithmetic number, because the mean of its divisors is an integer number (2366635779326).

Almost surely, 2^{55251644318156} is an apocalyptic number.

It is an amenable number.

55251644318156 is an abundant number, since it is smaller than the sum of its proper divisors (58346873089492).

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

55251644318156 is a wasteful number, since it uses less digits than its factorization.

55251644318156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595002 (or 3595000 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 56.

The spelling of 55251644318156 in words is "fifty-five trillion, two hundred fifty-one billion, six hundred forty-four million, three hundred eighteen thousand, one hundred fifty-six".