1001000560555 has 32 divisors (see below), whose sum is σ = 1293568688448. Its totient is φ = 740846284800.

The previous prime is 1001000560499. The next prime is 1001000560559. The reversal of 1001000560555 is 5550650001001.

It is not a de Polignac number, because 1001000560555 - 2²³ = 1000992171947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001000560559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7833375 + ... + 7960135.

It is an arithmetic number, because the mean of its divisors is an integer number (40424021514).

Almost surely, 2^{1001000560555} is an apocalyptic number.

1001000560555 is a deficient number, since it is larger than the sum of its proper divisors (292568127893).

1001000560555 is a wasteful number, since it uses less digits than its factorization.

1001000560555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128367.

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 1001000560555 its reverse (5550650001001), we get a palindrome (6551650561556).

The spelling of 1001000560555 in words is "one trillion, one billion, five hundred sixty thousand, five hundred fifty-five".