620041666225 has 6 divisors (see below), whose sum is σ = 768851666150. Its totient is φ = 496033332960.

The previous prime is 620041666193. The next prime is 620041666241. The reversal of 620041666225 is 522666140026.

It can be written as a sum of positive squares in 3 ways, for example, as 12770582049 + 607271084176 = 113007^2 + 779276^2 .

It is not a de Polignac number, because 620041666225 - 2⁵ = 620041666193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12400833300 + ... + 12400833349.

Almost surely, 2^620041666225 is an apocalyptic number.

It is an amenable number.

620041666225 is a deficient number, since it is larger than the sum of its proper divisors (148809999925).

620041666225 is a wasteful number, since it uses less digits than its factorization.

620041666225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24801666659 (or 24801666654 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 620041666225 in words is "six hundred twenty billion, forty-one million, six hundred sixty-six thousand, two hundred twenty-five".