6558241272 has 128 divisors (see below), whose sum is σ = 18239904000. Its totient is φ = 1948262400.

The previous prime is 6558241271. The next prime is 6558241273. The reversal of 6558241272 is 2721428556.

It is an interprime number because it is at equal distance from previous prime (6558241271) and next prime (6558241273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6558241271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7230243 + ... + 7231149.

It is an arithmetic number, because the mean of its divisors is an integer number (142499250).

Almost surely, 2^6558241272 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 6558241272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9119952000).

6558241272 is an abundant number, since it is smaller than the sum of its proper divisors (11681662728).

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

6558241272 is a wasteful number, since it uses less digits than its factorization.

6558241272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1433 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 6558241272 is about 80982.9690243572. The cubic root of 6558241272 is about 1871.8130177950.

The spelling of 6558241272 in words is "six billion, five hundred fifty-eight million, two hundred forty-one thousand, two hundred seventy-two".