1099949503500 has 120 divisors (see below), whose sum is σ = 3588605756736. Its totient is φ = 293319856800.

The previous prime is 1099949503481. The next prime is 1099949503529. The reversal of 1099949503500 is 53059499901.

1099949503500 is a `hidden beast` number, since 1 + 0 + 9 + 99 + 49 + 5 + 0 + 3 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13539124 + ... + 13620123.

Almost surely, 2^{1099949503500} is an apocalyptic number.

1099949503500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1099949503500 is an abundant number, since it is smaller than the sum of its proper divisors (2488656253236).

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

1099949503500 is a wasteful number, since it uses less digits than its factorization.

1099949503500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27159278 (or 27159257 counting only the distinct ones).

The product of its (nonzero) digits is 1968300, while the sum is 54.

The spelling of 1099949503500 in words is "one trillion, ninety-nine billion, nine hundred forty-nine million, five hundred three thousand, five hundred".