16420156 has 12 divisors (see below), whose sum is σ = 29512168. Its totient is φ = 7988112.

The previous prime is 16420153. The next prime is 16420171. The reversal of 16420156 is 65102461.

It is a self number, because there is not a number n which added to its sum of digits gives 16420156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16420153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55326 + ... + 55621.

Almost surely, 2^16420156 is an apocalyptic number.

It is an amenable number.

16420156 is a deficient number, since it is larger than the sum of its proper divisors (13092012).

16420156 is a wasteful number, since it uses less digits than its factorization.

16420156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110988 (or 110986 counting only the distinct ones).

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

The square root of 16420156 is about 4052.1791668188. The cubic root of 16420156 is about 254.1708607149.

The spelling of 16420156 in words is "sixteen million, four hundred twenty thousand, one hundred fifty-six".