620680356265 has 4 divisors (see below), whose sum is σ = 744816427524. Its totient is φ = 496544285008.

The previous prime is 620680356253. The next prime is 620680356277. The reversal of 620680356265 is 562653086026.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (620680356253) and next prime (620680356277).

It can be written as a sum of positive squares in 2 ways, for example, as 312489944064 + 308190412201 = 559008^2 + 555149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620680356265 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62068035622 + ... + 62068035631.

It is an arithmetic number, because the mean of its divisors is an integer number (186204106881).

Almost surely, 2^620680356265 is an apocalyptic number.

It is an amenable number.

620680356265 is a deficient number, since it is larger than the sum of its proper divisors (124136071259).

620680356265 is a wasteful number, since it uses less digits than its factorization.

620680356265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124136071258.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 620680356265 in words is "six hundred twenty billion, six hundred eighty million, three hundred fifty-six thousand, two hundred sixty-five".