1099253306885 has 4 divisors (see below), whose sum is σ = 1319103968268. Its totient is φ = 879402645504.

The previous prime is 1099253306803. The next prime is 1099253306891. The reversal of 1099253306885 is 5886033529901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 790936307716 + 308316999169 = 889346^2 + 555263^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099253306885 - 2¹⁸ = 1099253044741 is a prime.

It is a super-4 number, since 4×1099253306885⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

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, 109925330684 + ... + 109925330693.

It is an arithmetic number, because the mean of its divisors is an integer number (329775992067).

Almost surely, 2^{1099253306885} is an apocalyptic number.

It is an amenable number.

1099253306885 is a deficient number, since it is larger than the sum of its proper divisors (219850661383).

1099253306885 is an equidigital number, since it uses as much as digits as its factorization.

1099253306885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219850661382.

The product of its (nonzero) digits is 13996800, while the sum is 59.

The spelling of 1099253306885 in words is "one trillion, ninety-nine billion, two hundred fifty-three million, three hundred six thousand, eight hundred eighty-five".