16720927201 has 24 divisors (see below), whose sum is σ = 19473993000. Its totient is φ = 14296634880.

The previous prime is 16720927193. The next prime is 16720927211. The reversal of 16720927201 is 10272902761.

16720927201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 394221025 + 16326706176 = 19855^2 + 127776^2 .

It is not a de Polignac number, because 16720927201 - 2³ = 16720927193 is a prime.

It is a super-2 number, since 2×16720927201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16720927211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5653215 + ... + 5656171.

It is an arithmetic number, because the mean of its divisors is an integer number (811416375).

Almost surely, 2^16720927201 is an apocalyptic number.

16720927201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16720927201 is a deficient number, since it is larger than the sum of its proper divisors (2753065799).

16720927201 is a wasteful number, since it uses less digits than its factorization.

16720927201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745 (or 5734 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 16720927201 in words is "sixteen billion, seven hundred twenty million, nine hundred twenty-seven thousand, two hundred one".