16642064 has 40 divisors (see below), whose sum is σ = 34497792. Its totient is φ = 7758080.

The previous prime is 16642039. The next prime is 16642069. The reversal of 16642064 is 46024661.

16642064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16642069) 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, 14537 + ... + 15639.

Almost surely, 2^16642064 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 16642064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17248896).

16642064 is an abundant number, since it is smaller than the sum of its proper divisors (17855728).

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

16642064 is a wasteful number, since it uses less digits than its factorization.

16642064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 16642064 is about 4079.4685928439. The cubic root of 16642064 is about 255.3107271982.

The spelling of 16642064 in words is "sixteen million, six hundred forty-two thousand, sixty-four".