1016606511603 has 6 divisors (see below), whose sum is σ = 1468431627884. Its totient is φ = 677737674396.

The previous prime is 1016606511601. The next prime is 1016606511607. The reversal of 1016606511603 is 3061156066101.

1016606511603 is a `hidden beast` number, since 10 + 16 + 60 + 6 + 511 + 60 + 3 = 666.

It is not a de Polignac number, because 1016606511603 - 2¹ = 1016606511601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1016606511601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56478139525 + ... + 56478139542.

Almost surely, 2^{1016606511603} is an apocalyptic number.

1016606511603 is a deficient number, since it is larger than the sum of its proper divisors (451825116281).

1016606511603 is a wasteful number, since it uses less digits than its factorization.

1016606511603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112956279073 (or 112956279070 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 1016606511603 in words is "one trillion, sixteen billion, six hundred six million, five hundred eleven thousand, six hundred three".