6244402661 has 24 divisors (see below), whose sum is σ = 7372179360. Its totient is φ = 5272929312.

The previous prime is 6244402639. The next prime is 6244402691. The reversal of 6244402661 is 1662044426.

It is not a de Polignac number, because 6244402661 - 2¹⁰ = 6244401637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6244402691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1580090 + ... + 1584036.

It is an arithmetic number, because the mean of its divisors is an integer number (307174140).

Almost surely, 2^6244402661 is an apocalyptic number.

It is an amenable number.

6244402661 is a deficient number, since it is larger than the sum of its proper divisors (1127776699).

6244402661 is a wasteful number, since it uses less digits than its factorization.

6244402661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433 (or 4426 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 6244402661 is about 79021.5328945219. The cubic root of 6244402661 is about 1841.4656977986.

The spelling of 6244402661 in words is "six billion, two hundred forty-four million, four hundred two thousand, six hundred sixty-one".