1010000166605 has 16 divisors (see below), whose sum is σ = 1247994188784. Its totient is φ = 784208363520.

The previous prime is 1010000166587. The next prime is 1010000166613. The reversal of 1010000166605 is 5066610000101.

It can be written as a sum of positive squares in 8 ways, for example, as 274280543524 + 735719623081 = 523718^2 + 857741^2 .

It is not a de Polignac number, because 1010000166605 - 2⁶ = 1010000166541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12724244 + ... + 12803373.

It is an arithmetic number, because the mean of its divisors is an integer number (77999636799).

Almost surely, 2^{1010000166605} is an apocalyptic number.

It is an amenable number.

1010000166605 is a deficient number, since it is larger than the sum of its proper divisors (237994022179).

1010000166605 is a wasteful number, since it uses less digits than its factorization.

1010000166605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25527856.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 1010000166605 its reverse (5066610000101), we get a palindrome (6076610166706).

The spelling of 1010000166605 in words is "one trillion, ten billion, one hundred sixty-six thousand, six hundred five".