65077616 has 20 divisors (see below), whose sum is σ = 126214392. Its totient is φ = 32506176.

The previous prime is 65077613. The next prime is 65077627. The reversal of 65077616 is 61677056.

It is a super-2 number, since 2×65077616² = 8470192208486912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65077616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65077613) 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, 26555 + ... + 28901.

Almost surely, 2^65077616 is an apocalyptic number.

It is an amenable number.

65077616 is a deficient number, since it is larger than the sum of its proper divisors (61136776).

65077616 is a wasteful number, since it uses less digits than its factorization.

65077616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088 (or 4082 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 65077616 is about 8067.0698521830. The cubic root of 65077616 is about 402.2325494580.

The spelling of 65077616 in words is "sixty-five million, seventy-seven thousand, six hundred sixteen".