1601613606 has 8 divisors (see below), whose sum is σ = 3203227224. Its totient is φ = 533871200.

The previous prime is 1601613593. The next prime is 1601613623. The reversal of 1601613606 is 6063161061.

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

1601613606 is an admirable number.

It is a super-2 number, since 2×1601613606² = 5130332285848646472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133467795 + ... + 133467806.

It is an arithmetic number, because the mean of its divisors is an integer number (400403403).

Almost surely, 2^1601613606 is an apocalyptic number.

1601613606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1601613606 is a wasteful number, since it uses less digits than its factorization.

1601613606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266935606.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1601613606 is about 40020.1649921636. The cubic root of 1601613606 is about 1170.0001475637. Note that the first 3 decimals are identical.

Adding to 1601613606 its reverse (6063161061), we get a palindrome (7664774667).

The spelling of 1601613606 in words is "one billion, six hundred one million, six hundred thirteen thousand, six hundred six".