6641000620 has 24 divisors (see below), whose sum is σ = 14142528288. Its totient is φ = 2618985600.

The previous prime is 6641000617. The next prime is 6641000623. The reversal of 6641000620 is 260001466.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6641000617) and next prime (6641000623).

It is not an unprimeable number, because it can be changed into a prime (6641000623) 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, 2336961 + ... + 2339800.

It is an arithmetic number, because the mean of its divisors is an integer number (589272012).

Almost surely, 2^6641000620 is an apocalyptic number.

It is an amenable number.

6641000620 is an abundant number, since it is smaller than the sum of its proper divisors (7501527668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6641000620 is a wasteful number, since it uses less digits than its factorization.

6641000620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676841 (or 4676839 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 6641000620 is about 81492.3347315562. The cubic root of 6641000620 is about 1879.6536841340.

The spelling of 6641000620 in words is "six billion, six hundred forty-one million, six hundred twenty", and thus it is an aban number.