1001056006001 has 4 divisors (see below), whose sum is σ = 1005209765604. Its totient is φ = 996902246400.

The previous prime is 1001056005997. The next prime is 1001056006033. The reversal of 1001056006001 is 1006006501001.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 296018693776 + 705037312225 = 544076^2 + 839665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001056006001 - 2² = 1001056005997 is a prime.

It is a super-2 number, since 2×1001056006001² (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 (1001056006061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2076879440 + ... + 2076879921.

It is an arithmetic number, because the mean of its divisors is an integer number (251302441401).

Almost surely, 2^{1001056006001} is an apocalyptic number.

It is an amenable number.

1001056006001 is a deficient number, since it is larger than the sum of its proper divisors (4153759603).

1001056006001 is an equidigital number, since it uses as much as digits as its factorization.

1001056006001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153759602.

The product of its (nonzero) digits is 180, while the sum is 20.

The spelling of 1001056006001 in words is "one trillion, one billion, fifty-six million, six thousand, one".