16725064021 has 8 divisors (see below), whose sum is σ = 16746786720. Its totient is φ = 16703358672.

The previous prime is 16725063991. The next prime is 16725064073. The reversal of 16725064021 is 12046052761.

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

It is a cyclic number.

It is not a de Polignac number, because 16725064021 - 2¹³ = 16725055829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16725064921) 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, 3340506 + ... + 3345508.

It is an arithmetic number, because the mean of its divisors is an integer number (2093348340).

Almost surely, 2^16725064021 is an apocalyptic number.

It is an amenable number.

16725064021 is a deficient number, since it is larger than the sum of its proper divisors (21722699).

16725064021 is a wasteful number, since it uses less digits than its factorization.

16725064021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 16725064021 in words is "sixteen billion, seven hundred twenty-five million, sixty-four thousand, twenty-one".