620605366161 has 32 divisors (see below), whose sum is σ = 944472241152. Its totient is φ = 358806528960.

The previous prime is 620605366091. The next prime is 620605366163. The reversal of 620605366161 is 161663506026.

It is not a de Polignac number, because 620605366161 - 2¹³ = 620605357969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620605366163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812955 + ... + 1379168.

It is an arithmetic number, because the mean of its divisors is an integer number (29514757536).

Almost surely, 2^620605366161 is an apocalyptic number.

It is an amenable number.

620605366161 is a deficient number, since it is larger than the sum of its proper divisors (323866874991).

620605366161 is a wasteful number, since it uses less digits than its factorization.

620605366161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192533.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 620605366161 in words is "six hundred twenty billion, six hundred five million, three hundred sixty-six thousand, one hundred sixty-one".