1001051005506 has 32 divisors (see below), whose sum is σ = 2049828126720. Its totient is φ = 325738146384.

The previous prime is 1001051005477. The next prime is 1001051005541. The reversal of 1001051005506 is 6055001501001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649090 + ... + 1556733.

It is an arithmetic number, because the mean of its divisors is an integer number (64057128960).

Almost surely, 2^{1001051005506} is an apocalyptic number.

1001051005506 is an abundant number, since it is smaller than the sum of its proper divisors (1048777121214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001051005506 is a wasteful number, since it uses less digits than its factorization.

1001051005506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207630.

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 1001051005506 its reverse (6055001501001), we get a palindrome (7056052506507).

The spelling of 1001051005506 in words is "one trillion, one billion, fifty-one million, five thousand, five hundred six".