11556855464033 has 8 divisors (see below), whose sum is σ = 12914978168736. Its totient is φ = 10249982672800.

The previous prime is 11556855464023. The next prime is 11556855464101. The reversal of 11556855464033 is 33046455865511.

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 11556855464033 - 2⁴ = 11556855464017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11556855464033.

It is not an unprimeable number, because it can be changed into a prime (11556855464023) 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, 12812477891 + ... + 12812478792.

It is an arithmetic number, because the mean of its divisors is an integer number (1614372271092).

Almost surely, 2^{11556855464033} is an apocalyptic number.

It is an amenable number.

11556855464033 is a deficient number, since it is larger than the sum of its proper divisors (1358122704703).

11556855464033 is a wasteful number, since it uses less digits than its factorization.

11556855464033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25624956735.

The product of its (nonzero) digits is 25920000, while the sum is 56.

The spelling of 11556855464033 in words is "eleven trillion, five hundred fifty-six billion, eight hundred fifty-five million, four hundred sixty-four thousand, thirty-three".