1001650005555 has 48 divisors (see below), whose sum is σ = 1692005760000. Its totient is φ = 505924255296.

The previous prime is 1001650005539. The next prime is 1001650005607. The reversal of 1001650005555 is 5555000561001.

It is not a de Polignac number, because 1001650005555 - 2⁴ = 1001650005539 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16664446 + ... + 16724444.

It is an arithmetic number, because the mean of its divisors is an integer number (35250120000).

Almost surely, 2^{1001650005555} is an apocalyptic number.

1001650005555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1001650005555 is a deficient number, since it is larger than the sum of its proper divisors (690355754445).

1001650005555 is a wasteful number, since it uses less digits than its factorization.

1001650005555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63128 (or 63109 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

Adding to 1001650005555 its reverse (5555000561001), we get a palindrome (6556650566556).

The spelling of 1001650005555 in words is "one trillion, one billion, six hundred fifty million, five thousand, five hundred fifty-five".