620536521344044 has 6 divisors (see below), whose sum is σ = 1085938912352084. Its totient is φ = 310268260672020.

The previous prime is 620536521344021. The next prime is 620536521344063. The reversal of 620536521344044 is 440443125635026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77567065168002 + ... + 77567065168009.

Almost surely, 2^{620536521344044} is an apocalyptic number.

It is an amenable number.

620536521344044 is a deficient number, since it is larger than the sum of its proper divisors (465402391008040).

620536521344044 is a wasteful number, since it uses less digits than its factorization.

620536521344044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155134130336015 (or 155134130336013 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 620536521344044 in words is "six hundred twenty trillion, five hundred thirty-six billion, five hundred twenty-one million, three hundred forty-four thousand, forty-four".