6365820552 has 256 divisors, whose sum is σ = 20020224000. Its totient is φ = 1642291200.

The previous prime is 6365820541. The next prime is 6365820557. The reversal of 6365820552 is 2550285636.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6365820557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31988949 + ... + 31989147.

It is an arithmetic number, because the mean of its divisors is an integer number (78204000).

Almost surely, 2^6365820552 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 6365820552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10010112000).

6365820552 is an abundant number, since it is smaller than the sum of its proper divisors (13654403448).

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

6365820552 is a wasteful number, since it uses less digits than its factorization.

6365820552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 6365820552 is about 79786.0924723100. The cubic root of 6365820552 is about 1853.3244875044.

The spelling of 6365820552 in words is "six billion, three hundred sixty-five million, eight hundred twenty thousand, five hundred fifty-two".