620120566945 has 16 divisors (see below), whose sum is σ = 811822227840. Its totient is φ = 450981203200.

The previous prime is 620120566939. The next prime is 620120566973. The reversal of 620120566945 is 549665021026.

It is not a de Polignac number, because 620120566945 - 2²⁷ = 619986349217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620120566895 and 620120566904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554201 + ... + 1912009.

It is an arithmetic number, because the mean of its divisors is an integer number (50738889240).

Almost surely, 2^620120566945 is an apocalyptic number.

It is an amenable number.

620120566945 is a deficient number, since it is larger than the sum of its proper divisors (191701660895).

620120566945 is a wasteful number, since it uses less digits than its factorization.

620120566945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389336.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 620120566945 in words is "six hundred twenty billion, one hundred twenty million, five hundred sixty-six thousand, nine hundred forty-five".