16663054 has 4 divisors (see below), whose sum is σ = 24994584. Its totient is φ = 8331526.

The previous prime is 16663037. The next prime is 16663091. The reversal of 16663054 is 45036661.

16663054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45036661 = 2053 ⋅21937.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4165762 + ... + 4165765.

It is an arithmetic number, because the mean of its divisors is an integer number (6248646).

Almost surely, 2^16663054 is an apocalyptic number.

16663054 is a deficient number, since it is larger than the sum of its proper divisors (8331530).

16663054 is an equidigital number, since it uses as much as digits as its factorization.

16663054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331529.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 16663054 is about 4082.0404211619. The cubic root of 16663054 is about 255.4180199939.

The spelling of 16663054 in words is "sixteen million, six hundred sixty-three thousand, fifty-four".