65464416 has 96 divisors (see below), whose sum is σ = 202214880. Its totient is φ = 20533248.

The previous prime is 65464393. The next prime is 65464423. The reversal of 65464416 is 61446456.

65464416 is a `hidden beast` number, since 6 + 5 + 4 + 644 + 1 + 6 = 666.

65464416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12460 + ... + 16916.

It is an arithmetic number, because the mean of its divisors is an integer number (2106405).

Almost surely, 2^65464416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65464416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101107440).

65464416 is an abundant number, since it is smaller than the sum of its proper divisors (136750464).

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

65464416 is a wasteful number, since it uses less digits than its factorization.

65464416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493 (or 4479 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 65464416 is about 8091.0083425986. The cubic root of 65464416 is about 403.0278885605.

The spelling of 65464416 in words is "sixty-five million, four hundred sixty-four thousand, four hundred sixteen".