1005511056051 has 8 divisors (see below), whose sum is σ = 1411243587520. Its totient is φ = 635059614312.

The previous prime is 1005511056049. The next prime is 1005511056149. The reversal of 1005511056051 is 1506501155001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1005511056051 - 2¹ = 1005511056049 is a prime.

It is a super-2 number, since 2×1005511056051² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005511056551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8820272365 + ... + 8820272478.

It is an arithmetic number, because the mean of its divisors is an integer number (176405448440).

Almost surely, 2^{1005511056051} is an apocalyptic number.

1005511056051 is a deficient number, since it is larger than the sum of its proper divisors (405732531469).

1005511056051 is a wasteful number, since it uses less digits than its factorization.

1005511056051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17640544865.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 1005511056051 in words is "one trillion, five billion, five hundred eleven million, fifty-six thousand, fifty-one".