65775151 has 4 divisors (see below), whose sum is σ = 70834792. Its totient is φ = 60715512.

The previous prime is 65775097. The next prime is 65775179. The reversal of 65775151 is 15157756.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65775151 - 2¹⁹ = 65250863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65775151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65775551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529801 + ... + 2529826.

It is an arithmetic number, because the mean of its divisors is an integer number (17708698).

Almost surely, 2^65775151 is an apocalyptic number.

65775151 is a deficient number, since it is larger than the sum of its proper divisors (5059641).

65775151 is a wasteful number, since it uses less digits than its factorization.

65775151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5059640.

The product of its digits is 36750, while the sum is 37.

The square root of 65775151 is about 8110.1880989284. The cubic root of 65775151 is about 403.6645562945.

The spelling of 65775151 in words is "sixty-five million, seven hundred seventy-five thousand, one hundred fifty-one".