65220120511783 has 2 divisors, whose sum is σ = 65220120511784. Its totient is φ = 65220120511782.

The previous prime is 65220120511717. The next prime is 65220120511841. The reversal of 65220120511783 is 38711502102256.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65220120511783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65220120518783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32610060255891 + 32610060255892.

It is an arithmetic number, because the mean of its divisors is an integer number (32610060255892).

Almost surely, 2^{65220120511783} is an apocalyptic number.

65220120511783 is a deficient number, since it is larger than the sum of its proper divisors (1).

65220120511783 is an equidigital number, since it uses as much as digits as its factorization.

65220120511783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 65220120511783 in words is "sixty-five trillion, two hundred twenty billion, one hundred twenty million, five hundred eleven thousand, seven hundred eighty-three".