1000555605051 has 4 divisors (see below), whose sum is σ = 1334074140072. Its totient is φ = 667037070032.

The previous prime is 1000555605031. The next prime is 1000555605073. The reversal of 1000555605051 is 1505065550001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000555605051 - 2³⁰ = 999481863227 is a prime.

It is a super-2 number, since 2×1000555605051² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000555605031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166759267506 + ... + 166759267511.

It is an arithmetic number, because the mean of its divisors is an integer number (333518535018).

Almost surely, 2^{1000555605051} is an apocalyptic number.

1000555605051 is a deficient number, since it is larger than the sum of its proper divisors (333518535021).

1000555605051 is an equidigital number, since it uses as much as digits as its factorization.

1000555605051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333518535020.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 1000555605051 in words is "one trillion, five hundred fifty-five million, six hundred five thousand, fifty-one".