620705711066 has 16 divisors (see below), whose sum is σ = 1064368197504. Its totient is φ = 265941417264.

The previous prime is 620705711057. The next prime is 620705711069. The reversal of 620705711066 is 660117507026.

It is not an unprimeable number, because it can be changed into a prime (620705711069) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6225110 + ... + 6324033.

It is an arithmetic number, because the mean of its divisors is an integer number (66523012344).

Almost surely, 2^620705711066 is an apocalyptic number.

620705711066 is a deficient number, since it is larger than the sum of its proper divisors (443662486438).

620705711066 is a wasteful number, since it uses less digits than its factorization.

620705711066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12552685.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 620705711066 in words is "six hundred twenty billion, seven hundred five million, seven hundred eleven thousand, sixty-six".