65505151351377 has 6 divisors (see below), whose sum is σ = 94618551952002. Its totient is φ = 43670100900912.

The previous prime is 65505151351357. The next prime is 65505151351417. The reversal of 65505151351377 is 77315315150556.

It is a happy number.

65505151351377 is a `hidden beast` number, since 6 + 5 + 5 + 0 + 5 + 1 + 51 + 3 + 513 + 77 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65328277273281 + 176874078096 = 8082591^2 + 420564^2 .

It is not a de Polignac number, because 65505151351377 - 2¹⁸ = 65505151089233 is a prime.

It is a super-2 number, since 2×65505151351377² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65505151351337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3639175075068 + ... + 3639175075085.

It is an arithmetic number, because the mean of its divisors is an integer number (15769758658667).

Almost surely, 2^{65505151351377} is an apocalyptic number.

It is an amenable number.

65505151351377 is a deficient number, since it is larger than the sum of its proper divisors (29113400600625).

65505151351377 is a wasteful number, since it uses less digits than its factorization.

65505151351377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278350150159 (or 7278350150156 counting only the distinct ones).

The product of its (nonzero) digits is 8268750, while the sum is 54.

The spelling of 65505151351377 in words is "sixty-five trillion, five hundred five billion, one hundred fifty-one million, three hundred fifty-one thousand, three hundred seventy-seven".