65727345377751 has 16 divisors (see below), whose sum is σ = 87688382090496. Its totient is φ = 43792271018496.

The previous prime is 65727345377747. The next prime is 65727345377773. The reversal of 65727345377751 is 15777354372756.

It is not a de Polignac number, because 65727345377751 - 2² = 65727345377747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65727345377851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185770551 + ... + 186124023.

It is an arithmetic number, because the mean of its divisors is an integer number (5480523880656).

Almost surely, 2^{65727345377751} is an apocalyptic number.

65727345377751 is a deficient number, since it is larger than the sum of its proper divisors (21961036712745).

65727345377751 is a wasteful number, since it uses less digits than its factorization.

65727345377751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390022.

The product of its digits is 907578000, while the sum is 69.

The spelling of 65727345377751 in words is "sixty-five trillion, seven hundred twenty-seven billion, three hundred forty-five million, three hundred seventy-seven thousand, seven hundred fifty-one".