16642158 has 16 divisors (see below), whose sum is σ = 35844816. Its totient is φ = 5120640.

The previous prime is 16642151. The next prime is 16642177. The reversal of 16642158 is 85124661.

It is a super-2 number, since 2×16642158² = 553922845793928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16642151) 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, 106603 + ... + 106758.

It is an arithmetic number, because the mean of its divisors is an integer number (2240301).

Almost surely, 2^16642158 is an apocalyptic number.

16642158 is an abundant number, since it is smaller than the sum of its proper divisors (19202658).

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

16642158 is a wasteful number, since it uses less digits than its factorization.

16642158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213379.

The product of its digits is 11520, while the sum is 33.

The square root of 16642158 is about 4079.4801139361. The cubic root of 16642158 is about 255.3112078910.

It can be divided in two parts, 166 and 42158, that added together give a palindrome (42324).

The spelling of 16642158 in words is "sixteen million, six hundred forty-two thousand, one hundred fifty-eight".