64969056 has 144 divisors (see below), whose sum is σ = 201277440. Its totient is φ = 19802880.

The previous prime is 64969039. The next prime is 64969061. The reversal of 64969056 is 65096946.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×64969056² = 8441956475062272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169441 + ... + 169823.

It is an arithmetic number, because the mean of its divisors is an integer number (1397760).

Almost surely, 2^64969056 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 64969056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100638720).

64969056 is an abundant number, since it is smaller than the sum of its proper divisors (136308384).

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

64969056 is a wasteful number, since it uses less digits than its factorization.

64969056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 64969056 is about 8060.3384544323. The cubic root of 64969056 is about 402.0087619684.

The spelling of 64969056 in words is "sixty-four million, nine hundred sixty-nine thousand, fifty-six".