64016694 has 48 divisors (see below), whose sum is σ = 161135520. Its totient is φ = 17988480.

The previous prime is 64016683. The next prime is 64016699. The reversal of 64016694 is 49661046.

64016694 is a `hidden beast` number, since 640 + 1 + 6 + 6 + 9 + 4 = 666.

64016694 is nontrivially palindromic in base 13.

64016694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64016694² = 8196274221379272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64016699) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3522 + ... + 11850.

It is an arithmetic number, because the mean of its divisors is an integer number (3356990).

Almost surely, 2^64016694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64016694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80567760).

64016694 is an abundant number, since it is smaller than the sum of its proper divisors (97118826).

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

64016694 is a wasteful number, since it uses less digits than its factorization.

64016694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8405 (or 8402 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 64016694 is about 8001.0433069694. The cubic root of 64016694 is about 400.0347761431.

The spelling of 64016694 in words is "sixty-four million, sixteen thousand, six hundred ninety-four".