1061166501009 has 12 divisors (see below), whose sum is σ = 1561716738036. Its totient is φ = 694096327392.

The previous prime is 1061166501007. The next prime is 1061166501013. The reversal of 1061166501009 is 9001056611601.

It can be written as a sum of positive squares in 2 ways, for example, as 463042142784 + 598124358225 = 680472^2 + 773385^2 .

It is not a de Polignac number, because 1061166501009 - 2¹ = 1061166501007 is a prime.

It is a super-3 number, since 3×1061166501009³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1061166501007) 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, 1112333382 + ... + 1112334335.

It is an arithmetic number, because the mean of its divisors is an integer number (130143061503).

Almost surely, 2^{1061166501009} is an apocalyptic number.

It is an amenable number.

1061166501009 is a deficient number, since it is larger than the sum of its proper divisors (500550237027).

1061166501009 is a wasteful number, since it uses less digits than its factorization.

1061166501009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224667776 (or 2224667773 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The spelling of 1061166501009 in words is "one trillion, sixty-one billion, one hundred sixty-six million, five hundred one thousand, nine".