11563723655 has 8 divisors (see below), whose sum is σ = 15137965584. Its totient is φ = 8409980800.

The previous prime is 11563723621. The next prime is 11563723727. The reversal of 11563723655 is 55632736511.

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

It is a de Polignac number, because none of the positive numbers 2^k-11563723655 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 105124706 + ... + 105124815.

It is an arithmetic number, because the mean of its divisors is an integer number (1892245698).

Almost surely, 2^11563723655 is an apocalyptic number.

11563723655 is a deficient number, since it is larger than the sum of its proper divisors (3574241929).

11563723655 is a wasteful number, since it uses less digits than its factorization.

11563723655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210249537.

The product of its digits is 567000, while the sum is 44.

The spelling of 11563723655 in words is "eleven billion, five hundred sixty-three million, seven hundred twenty-three thousand, six hundred fifty-five".