1001015550011 has 16 divisors (see below), whose sum is σ = 1012172410368. Its totient is φ = 989925300000.

The previous prime is 1001015550001. The next prime is 1001015550077. The reversal of 1001015550011 is 1100555101001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001015550011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001015550001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56067236 + ... + 56085086.

It is an arithmetic number, because the mean of its divisors is an integer number (63260775648).

Almost surely, 2^{1001015550011} is an apocalyptic number.

1001015550011 is a deficient number, since it is larger than the sum of its proper divisors (11156860357).

1001015550011 is a wasteful number, since it uses less digits than its factorization.

1001015550011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19682.

The product of its (nonzero) digits is 125, while the sum is 20.

The spelling of 1001015550011 in words is "one trillion, one billion, fifteen million, five hundred fifty thousand, eleven".