16720126 has 8 divisors (see below), whose sum is σ = 26170704. Its totient is φ = 7996560.

The previous prime is 16720117. The next prime is 16720157. The reversal of 16720126 is 62102761.

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

It is a super-2 number, since 2×16720126² = 559125226911752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16720126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181695 + ... + 181786.

It is an arithmetic number, because the mean of its divisors is an integer number (3271338).

Almost surely, 2^16720126 is an apocalyptic number.

16720126 is a deficient number, since it is larger than the sum of its proper divisors (9450578).

16720126 is a wasteful number, since it uses less digits than its factorization.

16720126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363506.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 16720126 is about 4089.0250671768. The cubic root of 16720126 is about 255.7092952548.

Adding to 16720126 its reverse (62102761), we get a palindrome (78822887).

The spelling of 16720126 in words is "sixteen million, seven hundred twenty thousand, one hundred twenty-six".