1000551105511 has 16 divisors (see below), whose sum is σ = 1096056187200. Its totient is φ = 909125134848.

The previous prime is 1000551105473. The next prime is 1000551105553. The reversal of 1000551105511 is 1155011550001.

It is a cyclic number.

It is not a de Polignac number, because 1000551105511 - 2⁷ = 1000551105383 is a prime.

It is a super-2 number, since 2×1000551105511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000551105581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4694110 + ... + 4902628.

It is an arithmetic number, because the mean of its divisors is an integer number (68503511700).

Almost surely, 2^{1000551105511} is an apocalyptic number.

1000551105511 is a deficient number, since it is larger than the sum of its proper divisors (95505081689).

1000551105511 is a wasteful number, since it uses less digits than its factorization.

1000551105511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218298.

The product of its (nonzero) digits is 625, while the sum is 25.

Adding to 1000551105511 its reverse (1155011550001), we get a palindrome (2155562655512).

The spelling of 1000551105511 in words is "one trillion, five hundred fifty-one million, one hundred five thousand, five hundred eleven".