1001005561051 has 8 divisors (see below), whose sum is σ = 1020389619200. Its totient is φ = 981789330600.

The previous prime is 1001005560979. The next prime is 1001005561057. The reversal of 1001005561051 is 1501655001001.

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

It is a cyclic number.

It is not a de Polignac number, because 1001005561051 - 2¹⁵ = 1001005528283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001005561057) 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, 41944881 + ... + 41968738.

It is an arithmetic number, because the mean of its divisors is an integer number (127548702400).

Almost surely, 2^{1001005561051} is an apocalyptic number.

1001005561051 is a deficient number, since it is larger than the sum of its proper divisors (19384058149).

1001005561051 is an equidigital number, since it uses as much as digits as its factorization.

1001005561051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83913849.

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

The spelling of 1001005561051 in words is "one trillion, one billion, five million, five hundred sixty-one thousand, fifty-one".