1005556080631 has 2 divisors, whose sum is σ = 1005556080632. Its totient is φ = 1005556080630.

The previous prime is 1005556080563. The next prime is 1005556080673. The reversal of 1005556080631 is 1360806555001.

It is a strong prime.

It is an emirp because it is prime and its reverse (1360806555001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005556080631 is a prime.

It is a super-2 number, since 2×1005556080631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005536080631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502778040315 + 502778040316.

It is an arithmetic number, because the mean of its divisors is an integer number (502778040316).

Almost surely, 2^{1005556080631} is an apocalyptic number.

1005556080631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005556080631 is an equidigital number, since it uses as much as digits as its factorization.

1005556080631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 1005556080631 in words is "one trillion, five billion, five hundred fifty-six million, eighty thousand, six hundred thirty-one".