65710220211755 has 16 divisors (see below), whose sum is σ = 92552464608960. Its totient is φ = 43840641128832.

The previous prime is 65710220211719. The next prime is 65710220211761. The reversal of 65710220211755 is 55711202201756.

It is a cyclic number.

It is not a de Polignac number, because 65710220211755 - 2²² = 65710216017451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25370740100 + ... + 25370742689.

It is an arithmetic number, because the mean of its divisors is an integer number (5784529038060).

Almost surely, 2^{65710220211755} is an apocalyptic number.

65710220211755 is a deficient number, since it is larger than the sum of its proper divisors (26842244397205).

65710220211755 is a wasteful number, since it uses less digits than its factorization.

65710220211755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50741482838.

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 65710220211755 in words is "sixty-five trillion, seven hundred ten billion, two hundred twenty million, two hundred eleven thousand, seven hundred fifty-five".