65770705951 has 2 divisors, whose sum is σ = 65770705952. Its totient is φ = 65770705950.

The previous prime is 65770705879. The next prime is 65770705961. The reversal of 65770705951 is 15950707756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65770705951 - 2⁹ = 65770705439 is a prime.

It is a super-2 number, since 2×65770705951² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65770705961) 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 as a sum of consecutive naturals, namely, 32885352975 + 32885352976.

It is an arithmetic number, because the mean of its divisors is an integer number (32885352976).

Almost surely, 2^65770705951 is an apocalyptic number.

65770705951 is a deficient number, since it is larger than the sum of its proper divisors (1).

65770705951 is an equidigital number, since it uses as much as digits as its factorization.

65770705951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2315250, while the sum is 52.

The spelling of 65770705951 in words is "sixty-five billion, seven hundred seventy million, seven hundred five thousand, nine hundred fifty-one".