16601090 has 16 divisors (see below), whose sum is σ = 32598720. Its totient is φ = 6036720.

The previous prime is 16601069. The next prime is 16601093. The reversal of 16601090 is 9010661.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16601093) 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, 75350 + ... + 75569.

It is an arithmetic number, because the mean of its divisors is an integer number (2037420).

Almost surely, 2^16601090 is an apocalyptic number.

16601090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16601090 is a deficient number, since it is larger than the sum of its proper divisors (15997630).

16601090 is a wasteful number, since it uses less digits than its factorization.

16601090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150937.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 16601090 is about 4074.4435202859. The cubic root of 16601090 is about 255.1010236655.

It can be divided in two parts, 16 and 601090, that added together give a palindrome (601106).

The spelling of 16601090 in words is "sixteen million, six hundred one thousand, ninety".