1000000505061 has 16 divisors (see below), whose sum is σ = 1517615944320. Its totient is φ = 650406831840.

The previous prime is 1000000505027. The next prime is 1000000505099. The reversal of 1000000505061 is 1605050000001.

1000000505061 is a `hidden beast` number, since 100 + 0 + 0 + 0 + 0 + 505 + 0 + 61 = 666.

1000000505061 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1000000505061 - 2⁹ = 1000000504549 is a prime.

It is a super-2 number, since 2×1000000505061² (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 (1000000500061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451670305 + ... + 451672518.

It is an arithmetic number, because the mean of its divisors is an integer number (94850996520).

Almost surely, 2^{1000000505061} is an apocalyptic number.

It is an amenable number.

1000000505061 is a deficient number, since it is larger than the sum of its proper divisors (517615439259).

1000000505061 is an equidigital number, since it uses as much as digits as its factorization.

1000000505061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903342873 (or 903342867 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

Adding to 1000000505061 its reverse (1605050000001), we get a palindrome (2605050505062).

The spelling of 1000000505061 in words is "one trillion, five hundred five thousand, sixty-one".