2155210543224 has 64 divisors (see below), whose sum is σ = 6003850020000. Its totient is φ = 716345026560.

The previous prime is 2155210543201. The next prime is 2155210543229. The reversal of 2155210543224 is 4223450125512.

2155210543224 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 210 + 5 + 432 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155210543229) 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, 14219497 + ... + 14370264.

Almost surely, 2^{2155210543224} is an apocalyptic number.

2155210543224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2155210543224 is an abundant number, since it is smaller than the sum of its proper divisors (3848639476776).

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

2155210543224 is a wasteful number, since it uses less digits than its factorization.

2155210543224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28590125 (or 28590115 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 2155210543224 its reverse (4223450125512), we get a palindrome (6378660668736).

The spelling of 2155210543224 in words is "two trillion, one hundred fifty-five billion, two hundred ten million, five hundred forty-three thousand, two hundred twenty-four".