65357606356381 has 2 divisors, whose sum is σ = 65357606356382. Its totient is φ = 65357606356380.

The previous prime is 65357606356337. The next prime is 65357606356513. The reversal of 65357606356381 is 18365360675356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34427157261156 + 30930449095225 = 5867466^2 + 5561515^2 .

It is a cyclic number.

It is not a de Polignac number, because 65357606356381 - 2⁷ = 65357606356253 is a prime.

It is a super-2 number, since 2×65357606356381² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65357606356321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32678803178190 + 32678803178191.

It is an arithmetic number, because the mean of its divisors is an integer number (32678803178191).

Almost surely, 2^{65357606356381} is an apocalyptic number.

It is an amenable number.

65357606356381 is a deficient number, since it is larger than the sum of its proper divisors (1).

65357606356381 is an equidigital number, since it uses as much as digits as its factorization.

65357606356381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944000, while the sum is 64.

The spelling of 65357606356381 in words is "sixty-five trillion, three hundred fifty-seven billion, six hundred six million, three hundred fifty-six thousand, three hundred eighty-one".