620161216046369 has 2 divisors, whose sum is σ = 620161216046370. Its totient is φ = 620161216046368.

The previous prime is 620161216046353. The next prime is 620161216046423. The reversal of 620161216046369 is 963640612161026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415479408089344 + 204681807957025 = 20383312^2 + 14306705^2 .

It is a cyclic number.

It is not a de Polignac number, because 620161216046369 - 2⁴ = 620161216046353 is a prime.

It is a super-2 number, since 2×620161216046369² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 620161216046369.

It is not a weakly prime, because it can be changed into another prime (620161216049369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310080608023184 + 310080608023185.

It is an arithmetic number, because the mean of its divisors is an integer number (310080608023185).

Almost surely, 2^{620161216046369} is an apocalyptic number.

It is an amenable number.

620161216046369 is a deficient number, since it is larger than the sum of its proper divisors (1).

620161216046369 is an equidigital number, since it uses as much as digits as its factorization.

620161216046369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 620161216046369 in words is "six hundred twenty trillion, one hundred sixty-one billion, two hundred sixteen million, forty-six thousand, three hundred sixty-nine".