65513551157555 has 8 divisors (see below), whose sum is σ = 78616365543744. Its totient is φ = 52410771489600.

The previous prime is 65513551157501. The next prime is 65513551157597. The reversal of 65513551157555 is 55575115531556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65513551157555 - 2³⁶ = 65444831680819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65513551157494 and 65513551157503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4329986 + ... + 12238295.

It is an arithmetic number, because the mean of its divisors is an integer number (9827045692968).

Almost surely, 2^{65513551157555} is an apocalyptic number.

65513551157555 is a deficient number, since it is larger than the sum of its proper divisors (13102814386189).

65513551157555 is a wasteful number, since it uses less digits than its factorization.

65513551157555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17359117.

The product of its digits is 49218750, while the sum is 59.

The spelling of 65513551157555 in words is "sixty-five trillion, five hundred thirteen billion, five hundred fifty-one million, one hundred fifty-seven thousand, five hundred fifty-five".