1005501001061 has 8 divisors (see below), whose sum is σ = 1058596339200. Its totient is φ = 952423086240.

The previous prime is 1005501001031. The next prime is 1005501001069. The reversal of 1005501001061 is 1601001055001.

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 1005501001061 - 2³⁰ = 1004427259237 is a prime.

It is a super-2 number, since 2×1005501001061² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005501001069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4237280 + ... + 4468281.

It is an arithmetic number, because the mean of its divisors is an integer number (132324542400).

Almost surely, 2^{1005501001061} is an apocalyptic number.

It is an amenable number.

1005501001061 is a deficient number, since it is larger than the sum of its proper divisors (53095338139).

1005501001061 is an equidigital number, since it uses as much as digits as its factorization.

1005501001061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711659.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 1005501001061 its reverse (1601001055001), we get a palindrome (2606502056062).

The spelling of 1005501001061 in words is "one trillion, five billion, five hundred one million, one thousand, sixty-one".