1005005605550 has 24 divisors (see below), whose sum is σ = 1887818459832. Its totient is φ = 398022020000.

The previous prime is 1005005605489. The next prime is 1005005605573. The reversal of 1005005605550 is 555065005001.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99500456 + ... + 99510555.

It is an arithmetic number, because the mean of its divisors is an integer number (78659102493).

Almost surely, 2^{1005005605550} is an apocalyptic number.

1005005605550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005005605550 is a deficient number, since it is larger than the sum of its proper divisors (882812854282).

1005005605550 is a wasteful number, since it uses less digits than its factorization.

1005005605550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199011124 (or 199011119 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 1005005605550 in words is "one trillion, five billion, five million, six hundred five thousand, five hundred fifty".