16066998 has 60 divisors (see below), whose sum is σ = 37526940. Its totient is φ = 5136480.

The previous prime is 16066943. The next prime is 16067033. The reversal of 16066998 is 89966061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 272293 + ... + 272351.

It is an arithmetic number, because the mean of its divisors is an integer number (625449).

Almost surely, 2^16066998 is an apocalyptic number.

16066998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16066998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18763470).

16066998 is an abundant number, since it is smaller than the sum of its proper divisors (21459942).

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

16066998 is an equidigital number, since it uses as much as digits as its factorization.

16066998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 16066998 is about 4008.3660012529. The cubic root of 16066998 is about 252.3354376540.

The spelling of 16066998 in words is "sixteen million, sixty-six thousand, nine hundred ninety-eight".