1606151603 has 8 divisors (see below), whose sum is σ = 1851847008. Its totient is φ = 1364517504.

The previous prime is 1606151557. The next prime is 1606151647. The reversal of 1606151603 is 3061516061.

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

It is not a de Polignac number, because 1606151603 - 2¹⁸ = 1605889459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606151693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014476 + ... + 1016057.

It is an arithmetic number, because the mean of its divisors is an integer number (231480876).

Almost surely, 2^1606151603 is an apocalyptic number.

1606151603 is a deficient number, since it is larger than the sum of its proper divisors (245695405).

1606151603 is a wasteful number, since it uses less digits than its factorization.

1606151603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030653.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1606151603 is about 40076.8212686585. The cubic root of 1606151603 is about 1171.1041280389.

Adding to 1606151603 its reverse (3061516061), we get a palindrome (4667667664).

The spelling of 1606151603 in words is "one billion, six hundred six million, one hundred fifty-one thousand, six hundred three".