64016501 has 4 divisors (see below), whose sum is σ = 64062912. Its totient is φ = 63970092.

The previous prime is 64016479. The next prime is 64016503. The reversal of 64016501 is 10561046.

64016501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64016501 - 2¹⁴ = 64000117 is a prime.

It is a super-2 number, since 2×64016501² = 8196224800566002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64016503) 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 3 ways as a sum of consecutive naturals, for example, 21071 + ... + 23916.

It is an arithmetic number, because the mean of its divisors is an integer number (16015728).

Almost surely, 2^64016501 is an apocalyptic number.

It is an amenable number.

64016501 is a deficient number, since it is larger than the sum of its proper divisors (46411).

64016501 is a wasteful number, since it uses less digits than its factorization.

64016501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46410.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 64016501 is about 8001.0312460332. The cubic root of 64016501 is about 400.0343741293.

Adding to 64016501 its reverse (10561046), we get a palindrome (74577547).

The spelling of 64016501 in words is "sixty-four million, sixteen thousand, five hundred one".