53517720416643 has 96 divisors (see below), whose sum is σ = 96398759198720. Its totient is φ = 28739852144640.

The previous prime is 53517720416623. The next prime is 53517720416687. The reversal of 53517720416643 is 34661402771535.

53517720416643 is a `hidden beast` number, since 5 + 3 + 517 + 7 + 20 + 4 + 1 + 66 + 43 = 666.

It is not a de Polignac number, because 53517720416643 - 2⁸ = 53517720416387 is a prime.

It is a super-2 number, since 2×53517720416643² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53517720416643.

It is not an unprimeable number, because it can be changed into a prime (53517720416623) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36031998 + ... + 37487868.

Almost surely, 2^{53517720416643} is an apocalyptic number.

53517720416643 is a deficient number, since it is larger than the sum of its proper divisors (42881038782077).

53517720416643 is a wasteful number, since it uses less digits than its factorization.

53517720416643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456594 (or 1456571 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 53517720416643 in words is "fifty-three trillion, five hundred seventeen billion, seven hundred twenty million, four hundred sixteen thousand, six hundred forty-three".