1040066505 has 12 divisors (see below), whose sum is σ = 1802782020. Its totient is φ = 554702112.

The previous prime is 1040066501. The next prime is 1040066513. The reversal of 1040066505 is 5056600401.

It is a happy number.

1040066505 is a `hidden beast` number, since 1 + 0 + 4 + 0 + 0 + 6 + 650 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 164557584 + 875508921 = 12828^2 + 29589^2 .

It is not a de Polignac number, because 1040066505 - 2² = 1040066501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1040066501) 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, 11556250 + ... + 11556339.

It is an arithmetic number, because the mean of its divisors is an integer number (150231835).

Almost surely, 2^1040066505 is an apocalyptic number.

1040066505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040066505 is a deficient number, since it is larger than the sum of its proper divisors (762715515).

1040066505 is a wasteful number, since it uses less digits than its factorization.

1040066505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23112600 (or 23112597 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1040066505 is about 32250.0620929635. The cubic root of 1040066505 is about 1013.1809995670.

Adding to 1040066505 its reverse (5056600401), we get a palindrome (6096666906).

The spelling of 1040066505 in words is "one billion, forty million, sixty-six thousand, five hundred five".