11320643654 has 16 divisors (see below), whose sum is σ = 18198170208. Its totient is φ = 5267889792.

The previous prime is 11320643591. The next prime is 11320643759. The reversal of 11320643654 is 45634602311.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3323987 + ... + 3327390.

It is an arithmetic number, because the mean of its divisors is an integer number (1137385638).

Almost surely, 2^11320643654 is an apocalyptic number.

11320643654 is a deficient number, since it is larger than the sum of its proper divisors (6877526554).

11320643654 is a wasteful number, since it uses less digits than its factorization.

11320643654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651439.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 11320643654 in words is "eleven billion, three hundred twenty million, six hundred forty-three thousand, six hundred fifty-four".