65776045 has 4 divisors (see below), whose sum is σ = 78931260. Its totient is φ = 52620832.

The previous prime is 65776027. The next prime is 65776049. The reversal of 65776045 is 54067756.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24790441 + 40985604 = 4979^2 + 6402^2 .

It is a cyclic number.

It is not a de Polignac number, because 65776045 - 2¹⁵ = 65743277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65775989 and 65776007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65776049) 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, 6577600 + ... + 6577609.

It is an arithmetic number, because the mean of its divisors is an integer number (19732815).

Almost surely, 2^65776045 is an apocalyptic number.

It is an amenable number.

65776045 is a deficient number, since it is larger than the sum of its proper divisors (13155215).

65776045 is a wasteful number, since it uses less digits than its factorization.

65776045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13155214.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 65776045 is about 8110.2432146021. The cubic root of 65776045 is about 403.6663851234. Note that the first 3 decimals are identical.

The spelling of 65776045 in words is "sixty-five million, seven hundred seventy-six thousand, forty-five".