1611661224 has 16 divisors (see below), whose sum is σ = 4029153120. Its totient is φ = 537220400.

The previous prime is 1611661193. The next prime is 1611661229. The reversal of 1611661224 is 4221661161.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1611661191 and 1611661200.

It is not an unprimeable number, because it can be changed into a prime (1611661229) 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 3 ways as a sum of consecutive naturals, for example, 33576252 + ... + 33576299.

It is an arithmetic number, because the mean of its divisors is an integer number (251822070).

Almost surely, 2^1611661224 is an apocalyptic number.

It is an amenable number.

1611661224 is an abundant number, since it is smaller than the sum of its proper divisors (2417491896).

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

1611661224 is a wasteful number, since it uses less digits than its factorization.

1611661224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67152560 (or 67152556 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1611661224 is about 40145.5006694399. The cubic root of 1611661224 is about 1172.4416887939.

The spelling of 1611661224 in words is "one billion, six hundred eleven million, six hundred sixty-one thousand, two hundred twenty-four".