620560465854544 has 20 divisors (see below), whose sum is σ = 1206128760339924. Its totient is φ = 309301430928128.

The previous prime is 620560465854491. The next prime is 620560465854611. The reversal of 620560465854544 is 445458564065026.

It can be written as a sum of positive squares in 2 ways, for example, as 314015694958144 + 306544770896400 = 17720488^2 + 17508420^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61175119717 + ... + 61175129860.

Almost surely, 2^{620560465854544} is an apocalyptic number.

It is an amenable number.

620560465854544 is a deficient number, since it is larger than the sum of its proper divisors (585568294485380).

620560465854544 is a wasteful number, since it uses less digits than its factorization.

620560465854544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122350249902 (or 122350249896 counting only the distinct ones).

The product of its (nonzero) digits is 552960000, while the sum is 64.

The spelling of 620560465854544 in words is "six hundred twenty trillion, five hundred sixty billion, four hundred sixty-five million, eight hundred fifty-four thousand, five hundred forty-four".