6555021382 has 16 divisors (see below), whose sum is σ = 12101578272. Its totient is φ = 2593195200.

The previous prime is 6555021379. The next prime is 6555021383. The reversal of 6555021382 is 2831205556.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6555021383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18008119 + ... + 18008482.

It is an arithmetic number, because the mean of its divisors is an integer number (756348642).

Almost surely, 2^6555021382 is an apocalyptic number.

6555021382 is a deficient number, since it is larger than the sum of its proper divisors (5546556890).

6555021382 is a wasteful number, since it uses less digits than its factorization.

6555021382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36016623.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 6555021382 is about 80963.0865394842. The cubic root of 6555021382 is about 1871.5066338933.

The spelling of 6555021382 in words is "six billion, five hundred fifty-five million, twenty-one thousand, three hundred eighty-two".