16631414 has 4 divisors (see below), whose sum is σ = 24947124. Its totient is φ = 8315706.

The previous prime is 16631401. The next prime is 16631429. The reversal of 16631414 is 41413661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41413661 = 71 ⋅583291.

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, 4157852 + ... + 4157855.

It is an arithmetic number, because the mean of its divisors is an integer number (6236781).

Almost surely, 2^16631414 is an apocalyptic number.

16631414 is a deficient number, since it is larger than the sum of its proper divisors (8315710).

16631414 is an equidigital number, since it uses as much as digits as its factorization.

16631414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8315709.

The product of its digits is 1728, while the sum is 26.

The square root of 16631414 is about 4078.1630668721. The cubic root of 16631414 is about 255.2562539977.

The spelling of 16631414 in words is "sixteen million, six hundred thirty-one thousand, four hundred fourteen".