1616672231 has 8 divisors (see below), whose sum is σ = 1692359520. Its totient is φ = 1541434752.

The previous prime is 1616672177. The next prime is 1616672237. The reversal of 1616672231 is 1322766161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616672231 is a prime.

It is a super-2 number, since 2×1616672231² = 5227258204973034722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1616672191 and 1616672200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616672237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105086 + ... + 119483.

It is an arithmetic number, because the mean of its divisors is an integer number (211544940).

Almost surely, 2^1616672231 is an apocalyptic number.

1616672231 is a deficient number, since it is larger than the sum of its proper divisors (75687289).

1616672231 is a wasteful number, since it uses less digits than its factorization.

1616672231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224905.

The product of its digits is 18144, while the sum is 35.

The square root of 1616672231 is about 40207.8628007011. The cubic root of 1616672231 is about 1173.6555574230.

The spelling of 1616672231 in words is "one billion, six hundred sixteen million, six hundred seventy-two thousand, two hundred thirty-one".