65570662006537 has 2 divisors, whose sum is σ = 65570662006538. Its totient is φ = 65570662006536.

The previous prime is 65570662006523. The next prime is 65570662006573. The reversal of 65570662006537 is 73560026607556.

Together with next prime (65570662006573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54899489917561 + 10671172088976 = 7409419^2 + 3266676^2 .

It is a cyclic number.

It is not a de Polignac number, because 65570662006537 - 2²³ = 65570653617929 is a prime.

It is a super-3 number, since 3×65570662006537³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (65570662006337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32785331003268 + 32785331003269.

It is an arithmetic number, because the mean of its divisors is an integer number (32785331003269).

Almost surely, 2^{65570662006537} is an apocalyptic number.

It is an amenable number.

65570662006537 is a deficient number, since it is larger than the sum of its proper divisors (1).

65570662006537 is an equidigital number, since it uses as much as digits as its factorization.

65570662006537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628000, while the sum is 58.

The spelling of 65570662006537 in words is "sixty-five trillion, five hundred seventy billion, six hundred sixty-two million, six thousand, five hundred thirty-seven".