11556165056651 has 8 divisors (see below), whose sum is σ = 11714290029120. Its totient is φ = 11398489943112.

The previous prime is 11556165056573. The next prime is 11556165056713. The reversal of 11556165056651 is 15665056165511.

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 11556165056651 - 2²² = 11556160862347 is a prime.

It is a super-2 number, since 2×11556165056651² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11556165056593 and 11556165056602.

It is not an unprimeable number, because it can be changed into a prime (11556165053651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112413005 + ... + 112515758.

It is an arithmetic number, because the mean of its divisors is an integer number (1464286253640).

Almost surely, 2^{11556165056651} is an apocalyptic number.

11556165056651 is a deficient number, since it is larger than the sum of its proper divisors (158124972469).

11556165056651 is an equidigital number, since it uses as much as digits as its factorization.

11556165056651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224929465.

The product of its (nonzero) digits is 4050000, while the sum is 53.

The spelling of 11556165056651 in words is "eleven trillion, five hundred fifty-six billion, one hundred sixty-five million, fifty-six thousand, six hundred fifty-one".