1011001055605 has 16 divisors (see below), whose sum is σ = 1266166650240. Its totient is φ = 773502672448.

The previous prime is 1011001055497. The next prime is 1011001055611. The reversal of 1011001055605 is 5065501001101.

It is not a de Polignac number, because 1011001055605 - 2³³ = 1002411121013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011001055605.

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, 80350 + ... + 1424239.

It is an arithmetic number, because the mean of its divisors is an integer number (79135415640).

Almost surely, 2^{1011001055605} is an apocalyptic number.

It is an amenable number.

1011001055605 is a deficient number, since it is larger than the sum of its proper divisors (255165594635).

1011001055605 is a wasteful number, since it uses less digits than its factorization.

1011001055605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510460.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 1011001055605 its reverse (5065501001101), we get a palindrome (6076502056706).

The spelling of 1011001055605 in words is "one trillion, eleven billion, one million, fifty-five thousand, six hundred five".