11563623401 has 8 divisors (see below), whose sum is σ = 12617894208. Its totient is φ = 10509858000.

The previous prime is 11563623391. The next prime is 11563623437. The reversal of 11563623401 is 10432636511.

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 11563623401 - 2²² = 11559429097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11563623481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77690 + ... + 170771.

It is an arithmetic number, because the mean of its divisors is an integer number (1577236776).

Almost surely, 2^11563623401 is an apocalyptic number.

11563623401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11563623401 is a deficient number, since it is larger than the sum of its proper divisors (1054270807).

11563623401 is a wasteful number, since it uses less digits than its factorization.

11563623401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252703.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 11563623401 in words is "eleven billion, five hundred sixty-three million, six hundred twenty-three thousand, four hundred one".