1066031603 has 12 divisors (see below), whose sum is σ = 1335468960. Its totient is φ = 843453072.

The previous prime is 1066031557. The next prime is 1066031621. The reversal of 1066031603 is 3061306601.

It is not a de Polignac number, because 1066031603 - 2¹⁰ = 1066030579 is a prime.

It is a super-2 number, since 2×1066031603² = 2272846757189499218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066031203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 836123 + ... + 837396.

It is an arithmetic number, because the mean of its divisors is an integer number (111289080).

Almost surely, 2^1066031603 is an apocalyptic number.

1066031603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1066031603 is a deficient number, since it is larger than the sum of its proper divisors (269437357).

1066031603 is a wasteful number, since it uses less digits than its factorization.

1066031603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673546 (or 1673539 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1066031603 is about 32650.1394024589. The cubic root of 1066031603 is about 1021.5430965705.

The spelling of 1066031603 in words is "one billion, sixty-six million, thirty-one thousand, six hundred three".