605561001001 has 16 divisors (see below), whose sum is σ = 699558268608. Its totient is φ = 518062809600.

The previous prime is 605561000977. The next prime is 605561001007. The reversal of 605561001001 is 100100165506.

It is a cyclic number.

It is not a de Polignac number, because 605561001001 - 2¹³ = 605560992809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605561001007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342906 + ... + 1736236.

It is an arithmetic number, because the mean of its divisors is an integer number (43722391788).

Almost surely, 2^605561001001 is an apocalyptic number.

It is an amenable number.

605561001001 is a deficient number, since it is larger than the sum of its proper divisors (93997267607).

605561001001 is a wasteful number, since it uses less digits than its factorization.

605561001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401592.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 605561001001 its reverse (100100165506), we get a palindrome (705661166507).

The spelling of 605561001001 in words is "six hundred five billion, five hundred sixty-one million, one thousand, one".