65357557672681 has 8 divisors (see below), whose sum is σ = 65459248118784. Its totient is φ = 65255927315040.

The previous prime is 65357557672661. The next prime is 65357557672709. The reversal of 65357557672681 is 18627675575356.

65357557672681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 65357557672681 - 2¹¹ = 65357557670633 is a prime.

It is a super-2 number, since 2×65357557672681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65357557672661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12844801 + ... + 17196046.

It is an arithmetic number, because the mean of its divisors is an integer number (8182406014848).

Almost surely, 2^{65357557672681} is an apocalyptic number.

It is an amenable number.

65357557672681 is a deficient number, since it is larger than the sum of its proper divisors (101690446103).

65357557672681 is a wasteful number, since it uses less digits than its factorization.

65357557672681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30044231.

The product of its digits is 2222640000, while the sum is 73.

The spelling of 65357557672681 in words is "sixty-five trillion, three hundred fifty-seven billion, five hundred fifty-seven million, six hundred seventy-two thousand, six hundred eighty-one".