6641453552 has 40 divisors (see below), whose sum is σ = 13189957872. Its totient is φ = 3237696000.

The previous prime is 6641453551. The next prime is 6641453557. The reversal of 6641453552 is 2553541466.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641453551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2010302 + ... + 2013602.

Almost surely, 2^6641453552 is an apocalyptic number.

It is an amenable number.

6641453552 is a deficient number, since it is larger than the sum of its proper divisors (6548504320).

6641453552 is a wasteful number, since it uses less digits than its factorization.

6641453552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417 (or 6411 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

The square root of 6641453552 is about 81495.1136694710. The cubic root of 6641453552 is about 1879.6964154430.

The spelling of 6641453552 in words is "six billion, six hundred forty-one million, four hundred fifty-three thousand, five hundred fifty-two".