1005555560456 has 32 divisors (see below), whose sum is σ = 1917516931200. Its totient is φ = 494218992960.

The previous prime is 1005555560453. The next prime is 1005555560489. The reversal of 1005555560456 is 6540655555001.

It is a happy number.

It is a super-2 number, since 2×1005555560456² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005555560456.

It is not an unprimeable number, because it can be changed into a prime (1005555560453) 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, 6843521 + ... + 6988911.

It is an arithmetic number, because the mean of its divisors is an integer number (59922404100).

Almost surely, 2^{1005555560456} is an apocalyptic number.

It is an amenable number.

1005555560456 is a deficient number, since it is larger than the sum of its proper divisors (911961370744).

1005555560456 is a wasteful number, since it uses less digits than its factorization.

1005555560456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160109 (or 160105 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 47.

The spelling of 1005555560456 in words is "one trillion, five billion, five hundred fifty-five million, five hundred sixty thousand, four hundred fifty-six".