6625634404 has 9 divisors (see below), whose sum is σ = 11595145107. Its totient is φ = 3312735804.

The previous prime is 6625634387. The next prime is 6625634423. The reversal of 6625634404 is 4044365266.

The square root of 6625634404 is 81398.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 142447 + ... + 183145.

Almost surely, 2^6625634404 is an apocalyptic number.

6625634404 is the 81398-th square number.

It is an amenable number.

6625634404 is a deficient number, since it is larger than the sum of its proper divisors (4969510703).

6625634404 is an frugal number, since it uses more digits than its factorization.

6625634404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81402 (or 40701 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The cubic root of 6625634404 is about 1878.2028249507.

The spelling of 6625634404 in words is "six billion, six hundred twenty-five million, six hundred thirty-four thousand, four hundred four".