1605600601 has 8 divisors (see below), whose sum is σ = 1752340608. Its totient is φ = 1458990000.

The previous prime is 1605600599. The next prime is 1605600611. The reversal of 1605600601 is 1060065061.

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 1605600601 - 2¹ = 1605600599 is a prime.

It is a super-2 number, since 2×1605600601² = 5155906579863122402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1605600611) 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, 5425 + ... + 56926.

It is an arithmetic number, because the mean of its divisors is an integer number (219042576).

Almost surely, 2^1605600601 is an apocalyptic number.

1605600601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1605600601 is a deficient number, since it is larger than the sum of its proper divisors (146740007).

1605600601 is a wasteful number, since it uses less digits than its factorization.

1605600601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64703.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1605600601 is about 40069.9463563404. The cubic root of 1605600601 is about 1170.9701941232.

Adding to 1605600601 its reverse (1060065061), we get a palindrome (2665665662).

It can be divided in two parts, 1605 and 600601, that added together give a palindrome (602206).

The spelling of 1605600601 in words is "one billion, six hundred five million, six hundred thousand, six hundred one".