65618713351 has 4 divisors (see below), whose sum is σ = 68471700912. Its totient is φ = 62765725792.

The previous prime is 65618713319. The next prime is 65618713373. The reversal of 65618713351 is 15331781656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65618713351 - 2⁵ = 65618713319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65618713051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426493746 + ... + 1426493791.

It is an arithmetic number, because the mean of its divisors is an integer number (17117925228).

Almost surely, 2^65618713351 is an apocalyptic number.

65618713351 is a deficient number, since it is larger than the sum of its proper divisors (2852987561).

65618713351 is a wasteful number, since it uses less digits than its factorization.

65618713351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852987560.

The product of its digits is 453600, while the sum is 46.

The spelling of 65618713351 in words is "sixty-five billion, six hundred eighteen million, seven hundred thirteen thousand, three hundred fifty-one".