3561601603 has 12 divisors (see below), whose sum is σ = 4144087872. Its totient is φ = 3052064400.

The previous prime is 3561601597. The next prime is 3561601627. The reversal of 3561601603 is 3061061653.

It is not a de Polignac number, because 3561601603 - 2¹³ = 3561593411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3561601633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322926 + ... + 333772.

It is an arithmetic number, because the mean of its divisors is an integer number (345340656).

Almost surely, 2^3561601603 is an apocalyptic number.

3561601603 is a deficient number, since it is larger than the sum of its proper divisors (582486269).

3561601603 is a wasteful number, since it uses less digits than its factorization.

3561601603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17562 (or 17555 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 3561601603 is about 59679.1555151378. The cubic root of 3561601603 is about 1527.1502914108.

The spelling of 3561601603 in words is "three billion, five hundred sixty-one million, six hundred one thousand, six hundred three".