6620442562 has 8 divisors (see below), whose sum is σ = 10066700556. Its totient is φ = 3264875712.

The previous prime is 6620442559. The next prime is 6620442571. The reversal of 6620442562 is 2652440266.

It can be written as a sum of positive squares in 2 ways, for example, as 6215587921 + 404854641 = 78839^2 + 20121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6620442562² = 87660519433482247688, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22672603 + ... + 22672894.

Almost surely, 2^6620442562 is an apocalyptic number.

6620442562 is a deficient number, since it is larger than the sum of its proper divisors (3446257994).

6620442562 is a wasteful number, since it uses less digits than its factorization.

6620442562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45345572.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 6620442562 is about 81366.1020450163. The cubic root of 6620442562 is about 1877.7121106598.

The spelling of 6620442562 in words is "six billion, six hundred twenty million, four hundred forty-two thousand, five hundred sixty-two".