65155875277 has 2 divisors, whose sum is σ = 65155875278. Its totient is φ = 65155875276.

The previous prime is 65155875263. The next prime is 65155875307. The reversal of 65155875277 is 77257855156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65153073001 + 2802276 = 255251^2 + 1674^2 .

It is a cyclic number.

It is not a de Polignac number, because 65155875277 - 2¹¹ = 65155873229 is a prime.

It is a super-2 number, since 2×65155875277² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65155875217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32577937638 + 32577937639.

It is an arithmetic number, because the mean of its divisors is an integer number (32577937639).

Almost surely, 2^65155875277 is an apocalyptic number.

It is an amenable number.

65155875277 is a deficient number, since it is larger than the sum of its proper divisors (1).

65155875277 is an equidigital number, since it uses as much as digits as its factorization.

65155875277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20580000, while the sum is 58.

The spelling of 65155875277 in words is "sixty-five billion, one hundred fifty-five million, eight hundred seventy-five thousand, two hundred seventy-seven".