11107772991685 has 8 divisors (see below), whose sum is σ = 13329378280440. Its totient is φ = 8886184599744.

The previous prime is 11107772991659. The next prime is 11107772991751. The reversal of 11107772991685 is 58619927770111.

It can be written as a sum of positive squares in 4 ways, for example, as 1052474913604 + 10055298078081 = 1025902^2 + 3171009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11107772991685 - 2¹⁹ = 11107772467397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2729890 + ... + 5446819.

It is an arithmetic number, because the mean of its divisors is an integer number (1666172285055).

Almost surely, 2^{11107772991685} is an apocalyptic number.

It is an amenable number.

11107772991685 is a deficient number, since it is larger than the sum of its proper divisors (2221605288755).

11107772991685 is an equidigital number, since it uses as much as digits as its factorization.

11107772991685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448407.

The product of its (nonzero) digits is 13335840, while the sum is 64.

The spelling of 11107772991685 in words is "eleven trillion, one hundred seven billion, seven hundred seventy-two million, nine hundred ninety-one thousand, six hundred eighty-five".