6625606643 has 8 divisors (see below), whose sum is σ = 6665966016. Its totient is φ = 6585364800.

The previous prime is 6625606621. The next prime is 6625606651. The reversal of 6625606643 is 3466065266.

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

It is a cyclic number.

It is not a de Polignac number, because 6625606643 - 2⁶ = 6625606579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6625606594 and 6625606603.

It is not an unprimeable number, because it can be changed into a prime (6625606693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85055 + ... + 143127.

It is an arithmetic number, because the mean of its divisors is an integer number (833245752).

Almost surely, 2^6625606643 is an apocalyptic number.

6625606643 is a deficient number, since it is larger than the sum of its proper divisors (40359373).

6625606643 is a wasteful number, since it uses less digits than its factorization.

6625606643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58765.

The product of its (nonzero) digits is 933120, while the sum is 44.

The square root of 6625606643 is about 81397.8294735185. The cubic root of 6625606643 is about 1878.2002017623.

The spelling of 6625606643 in words is "six billion, six hundred twenty-five million, six hundred six thousand, six hundred forty-three".