64570016 has 96 divisors (see below), whose sum is σ = 154441728. Its totient is φ = 25977600.

The previous prime is 64569997. The next prime is 64570019. The reversal of 64570016 is 61007546.

It is not an unprimeable number, because it can be changed into a prime (64570019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427541 + ... + 427691.

It is an arithmetic number, because the mean of its divisors is an integer number (1608768).

Almost surely, 2^64570016 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 64570016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77220864).

64570016 is an abundant number, since it is smaller than the sum of its proper divisors (89871712).

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

64570016 is a wasteful number, since it uses less digits than its factorization.

64570016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 64570016 is about 8035.5470255609. The cubic root of 64570016 is about 401.1840250867.

The spelling of 64570016 in words is "sixty-four million, five hundred seventy thousand, sixteen".