16291066 has 32 divisors (see below), whose sum is σ = 28911168. Its totient is φ = 6800640.

The previous prime is 16291057. The next prime is 16291091. The reversal of 16291066 is 66019261.

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, 15576 + ... + 16588.

It is an arithmetic number, because the mean of its divisors is an integer number (903474).

Almost surely, 2^16291066 is an apocalyptic number.

16291066 is a deficient number, since it is larger than the sum of its proper divisors (12620102).

16291066 is a wasteful number, since it uses less digits than its factorization.

16291066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16291066 is about 4036.2192705551. The cubic root of 16291066 is about 253.5030376464.

The spelling of 16291066 in words is "sixteen million, two hundred ninety-one thousand, sixty-six".