620277065651 has 2 divisors, whose sum is σ = 620277065652. Its totient is φ = 620277065650.

The previous prime is 620277065581. The next prime is 620277065713. The reversal of 620277065651 is 156560772026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620277065651 - 2²⁶ = 620209956787 is a prime.

It is a super-2 number, since 2×620277065651² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 620277065596 and 620277065605.

It is not a weakly prime, because it can be changed into another prime (620277064651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310138532825 + 310138532826.

It is an arithmetic number, because the mean of its divisors is an integer number (310138532826).

Almost surely, 2^620277065651 is an apocalyptic number.

620277065651 is a deficient number, since it is larger than the sum of its proper divisors (1).

620277065651 is an equidigital number, since it uses as much as digits as its factorization.

620277065651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 620277065651 in words is "six hundred twenty billion, two hundred seventy-seven million, sixty-five thousand, six hundred fifty-one".