1661424112 has 10 divisors (see below), whose sum is σ = 3219009248. Its totient is φ = 830712048.

The previous prime is 1661424109. The next prime is 1661424119. The reversal of 1661424112 is 2114241661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1661424119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51919488 + ... + 51919519.

Almost surely, 2^1661424112 is an apocalyptic number.

It is an amenable number.

1661424112 is a deficient number, since it is larger than the sum of its proper divisors (1557585136).

1661424112 is a wasteful number, since it uses less digits than its factorization.

1661424112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103839015 (or 103839009 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1661424112 is about 40760.5705553786. The cubic root of 1661424112 is about 1184.3866485879.

Adding to 1661424112 its reverse (2114241661), we get a palindrome (3775665773).

The spelling of 1661424112 in words is "one billion, six hundred sixty-one million, four hundred twenty-four thousand, one hundred twelve".