65616308416 has 28 divisors (see below), whose sum is σ = 137866620888. Its totient is φ = 30878262272.

The previous prime is 65616308411. The next prime is 65616308419. The reversal of 65616308416 is 61480361656.

It is a Smith number, since the sum of its digits (46) 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 (65616308411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30153466 + ... + 30155641.

Almost surely, 2^65616308416 is an apocalyptic number.

It is an amenable number.

65616308416 is an abundant number, since it is smaller than the sum of its proper divisors (72250312472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65616308416 is a wasteful number, since it uses less digits than its factorization.

65616308416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60309136 (or 60309126 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 65616308416 in words is "sixty-five billion, six hundred sixteen million, three hundred eight thousand, four hundred sixteen".