1611060005 has 8 divisors (see below), whose sum is σ = 1935186552. Its totient is φ = 1287571648.

The previous prime is 1611059999. The next prime is 1611060007. The reversal of 1611060005 is 5000601161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3290596 + 1607769409 = 1814^2 + 40097^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1611060005 - 2¹² = 1611055909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611060007) 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, 153974 + ... + 164103.

It is an arithmetic number, because the mean of its divisors is an integer number (241898319).

Almost surely, 2^1611060005 is an apocalyptic number.

It is an amenable number.

1611060005 is a deficient number, since it is larger than the sum of its proper divisors (324126547).

1611060005 is a wasteful number, since it uses less digits than its factorization.

1611060005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319095.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1611060005 is about 40138.0119711976. The cubic root of 1611060005 is about 1172.2958802581.

Adding to 1611060005 its reverse (5000601161), we get a palindrome (6611661166).

The spelling of 1611060005 in words is "one billion, six hundred eleven million, sixty thousand, five".