1099955536 has 20 divisors (see below), whose sum is σ = 2188764052. Its totient is φ = 535113216.

The previous prime is 1099955497. The next prime is 1099955561. The reversal of 1099955536 is 6355599901.

It can be written as a sum of positive squares in 2 ways, for example, as 494795536 + 605160000 = 22244^2 + 24600^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928425 + ... + 929608.

Almost surely, 2^1099955536 is an apocalyptic number.

1099955536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1099955536 is a deficient number, since it is larger than the sum of its proper divisors (1088808516).

1099955536 is a wasteful number, since it uses less digits than its factorization.

1099955536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858078 (or 1858072 counting only the distinct ones).

The product of its (nonzero) digits is 1640250, while the sum is 52.

The square root of 1099955536 is about 33165.5775767587. The cubic root of 1099955536 is about 1032.2662063892.

The spelling of 1099955536 in words is "one billion, ninety-nine million, nine hundred fifty-five thousand, five hundred thirty-six".