16525666 has 16 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 7525440.

The previous prime is 16525637. The next prime is 16525669. The reversal of 16525666 is 66652561.

16525666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16525669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6786 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^16525666 is an apocalyptic number.

16525666 is a deficient number, since it is larger than the sum of its proper divisors (10569374).

16525666 is a wasteful number, since it uses less digits than its factorization.

16525666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15729.

The product of its digits is 64800, while the sum is 37.

The square root of 16525666 is about 4065.1772409084. The cubic root of 16525666 is about 254.7141022384.

The spelling of 16525666 in words is "sixteen million, five hundred twenty-five thousand, six hundred sixty-six".