16552986 has 32 divisors (see below), whose sum is σ = 34276608. Its totient is φ = 5325120.

The previous prime is 16552973. The next prime is 16553041. The reversal of 16552986 is 68925561.

16552986 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38191 + ... + 38621.

It is an arithmetic number, because the mean of its divisors is an integer number (1071144).

Almost surely, 2^16552986 is an apocalyptic number.

16552986 is an abundant number, since it is smaller than the sum of its proper divisors (17723622).

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

16552986 is a wasteful number, since it uses less digits than its factorization.

16552986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its digits is 129600, while the sum is 42.

The square root of 16552986 is about 4068.5361003683. The cubic root of 16552986 is about 254.8543882248.

The spelling of 16552986 in words is "sixteen million, five hundred fifty-two thousand, nine hundred eighty-six".