1005015056061 has 4 divisors (see below), whose sum is σ = 1340020074752. Its totient is φ = 670010037372.

The previous prime is 1005015056057. The next prime is 1005015056119. The reversal of 1005015056061 is 1606505105001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1005015056061 - 2² = 1005015056057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005015056161) 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, 167502509341 + ... + 167502509346.

It is an arithmetic number, because the mean of its divisors is an integer number (335005018688).

Almost surely, 2^{1005015056061} is an apocalyptic number.

It is an amenable number.

1005015056061 is a deficient number, since it is larger than the sum of its proper divisors (335005018691).

1005015056061 is an equidigital number, since it uses as much as digits as its factorization.

1005015056061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335005018690.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 1005015056061 in words is "one trillion, five billion, fifteen million, fifty-six thousand, sixty-one".