6556233722976 has 288 divisors, whose sum is σ = 21953739225600. Its totient is φ = 1855020254976.

The previous prime is 6556233722959. The next prime is 6556233723049. The reversal of 6556233722976 is 6792273326556.

It is a happy number.

6556233722976 is a `hidden beast` number, since 6 + 5 + 5 + 6 + 2 + 337 + 2 + 297 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9852571 + ... + 10496933.

It is an arithmetic number, because the mean of its divisors is an integer number (76228261200).

Almost surely, 2^{6556233722976} 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 6556233722976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10976869612800).

6556233722976 is an abundant number, since it is smaller than the sum of its proper divisors (15397505502624).

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

6556233722976 is a wasteful number, since it uses less digits than its factorization.

6556233722976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644503 (or 644478 counting only the distinct ones).

The product of its digits is 171460800, while the sum is 63.

The spelling of 6556233722976 in words is "six trillion, five hundred fifty-six billion, two hundred thirty-three million, seven hundred twenty-two thousand, nine hundred seventy-six".