65616122 has 24 divisors (see below), whose sum is σ = 116512788. Its totient is φ = 27529920.

The previous prime is 65616007. The next prime is 65616127. The reversal of 65616122 is 22161656.

It can be written as a sum of positive squares in 2 ways, for example, as 64657681 + 958441 = 8041^2 + 979^2 .

It is not an unprimeable number, because it can be changed into a prime (65616127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7283 + ... + 13574.

Almost surely, 2^65616122 is an apocalyptic number.

65616122 is a deficient number, since it is larger than the sum of its proper divisors (50896666).

65616122 is a wasteful number, since it uses less digits than its factorization.

65616122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20894 (or 20883 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 65616122 is about 8100.3778924196. The cubic root of 65616122 is about 403.3389714547.

Adding to 65616122 its reverse (22161656), we get a palindrome (87777778).

The spelling of 65616122 in words is "sixty-five million, six hundred sixteen thousand, one hundred twenty-two".