65779151 has 2 divisors, whose sum is σ = 65779152. Its totient is φ = 65779150.

The previous prime is 65779127. The next prime is 65779177. The reversal of 65779151 is 15197756.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65779151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65779099 and 65779108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65779751) 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, 32889575 + 32889576.

It is an arithmetic number, because the mean of its divisors is an integer number (32889576).

Almost surely, 2^65779151 is an apocalyptic number.

65779151 is a deficient number, since it is larger than the sum of its proper divisors (1).

65779151 is an equidigital number, since it uses as much as digits as its factorization.

65779151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66150, while the sum is 41.

The square root of 65779151 is about 8110.4346985843. The cubic root of 65779151 is about 403.6727388451.

The spelling of 65779151 in words is "sixty-five million, seven hundred seventy-nine thousand, one hundred fifty-one".