16064521 has 8 divisors (see below), whose sum is σ = 18129600. Its totient is φ = 14100240.

The previous prime is 16064513. The next prime is 16064527. The reversal of 16064521 is 12546061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16064521 - 2³ = 16064513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16064527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24861 + ... + 25498.

It is an arithmetic number, because the mean of its divisors is an integer number (2266200).

Almost surely, 2^16064521 is an apocalyptic number.

16064521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16064521 is a deficient number, since it is larger than the sum of its proper divisors (2065079).

16064521 is a wasteful number, since it uses less digits than its factorization.

16064521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50399.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 16064521 is about 4008.0570105726. The cubic root of 16064521 is about 252.3224697263.

The spelling of 16064521 in words is "sixteen million, sixty-four thousand, five hundred twenty-one".