620412506663 has 2 divisors, whose sum is σ = 620412506664. Its totient is φ = 620412506662.

The previous prime is 620412506641. The next prime is 620412506737. The reversal of 620412506663 is 366605214026.

It is a happy number.

620412506663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620412506663 - 2¹⁰ = 620412505639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620412506663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620412506633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310206253331 + 310206253332.

It is an arithmetic number, because the mean of its divisors is an integer number (310206253332).

Almost surely, 2^620412506663 is an apocalyptic number.

620412506663 is a deficient number, since it is larger than the sum of its proper divisors (1).

620412506663 is an equidigital number, since it uses as much as digits as its factorization.

620412506663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 620412506663 in words is "six hundred twenty billion, four hundred twelve million, five hundred six thousand, six hundred sixty-three".