69665056 has 24 divisors (see below), whose sum is σ = 137346300. Its totient is φ = 34783488.

The previous prime is 69665051. The next prime is 69665083. The reversal of 69665056 is 65056696.

It can be written as a sum of positive squares in 2 ways, for example, as 68624656 + 1040400 = 8284^2 + 1020^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (69665051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34770 + ... + 36718.

Almost surely, 2^69665056 is an apocalyptic number.

It is an amenable number.

69665056 is a deficient number, since it is larger than the sum of its proper divisors (67681244).

69665056 is a wasteful number, since it uses less digits than its factorization.

69665056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 69665056 is about 8346.5595307288. The cubic root of 69665056 is about 411.4701455270.

The spelling of 69665056 in words is "sixty-nine million, six hundred sixty-five thousand, fifty-six".