10991366 has 8 divisors (see below), whose sum is σ = 16501320. Its totient is φ = 5490928.

The previous prime is 10991363. The next prime is 10991369. The reversal of 10991366 is 66319901.

It is an interprime number because it is at equal distance from previous prime (10991363) and next prime (10991369).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10991363) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2570 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (2062665).

Almost surely, 2^10991366 is an apocalyptic number.

10991366 is a deficient number, since it is larger than the sum of its proper divisors (5509954).

10991366 is a wasteful number, since it uses less digits than its factorization.

10991366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 10991366 is about 3315.3229103663. The cubic root of 10991366 is about 222.3398064200.

The spelling of 10991366 in words is "ten million, nine hundred ninety-one thousand, three hundred sixty-six".