10991246402 has 8 divisors (see below), whose sum is σ = 17456685516. Its totient is φ = 5172351232.

The previous prime is 10991246353. The next prime is 10991246437. The reversal of 10991246402 is 20464219901.

It can be written as a sum of positive squares in 2 ways, for example, as 10936767241 + 54479161 = 104579^2 + 7381^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 161635943 + ... + 161636010.

Almost surely, 2^10991246402 is an apocalyptic number.

10991246402 is a deficient number, since it is larger than the sum of its proper divisors (6465439114).

10991246402 is a wasteful number, since it uses less digits than its factorization.

10991246402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323271972.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 10991246402 in words is "ten billion, nine hundred ninety-one million, two hundred forty-six thousand, four hundred two".