6622401652 has 6 divisors (see below), whose sum is σ = 11589202898. Its totient is φ = 3311200824.

The previous prime is 6622401647. The next prime is 6622401659. The reversal of 6622401652 is 2561042266.

It can be written as a sum of positive squares in only one way, i.e., 3980852836 + 2641548816 = 63094^2 + 51396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622401659) 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 as a sum of consecutive naturals, namely, 827800203 + ... + 827800210.

Almost surely, 2^6622401652 is an apocalyptic number.

It is an amenable number.

6622401652 is a deficient number, since it is larger than the sum of its proper divisors (4966801246).

6622401652 is a wasteful number, since it uses less digits than its factorization.

6622401652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655600417 (or 1655600415 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 6622401652 is about 81378.1398902678. The cubic root of 6622401652 is about 1877.8973069510.

The spelling of 6622401652 in words is "six billion, six hundred twenty-two million, four hundred one thousand, six hundred fifty-two".