11654740521216 has 243 divisors, whose sum is σ = 36393863357397. Its totient is φ = 3585418536960.

The previous prime is 11654740521199. The next prime is 11654740521241. The reversal of 11654740521216 is 61212504745611.

The square root of 11654740521216 is 3413904.

It is a perfect power (a square), and thus also a powerful number.

11654740521216 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 4 + 7 + 405 + 21 + 216 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1724074041600 + 9930666479616 = 1313040^2 + 3151296^2 .

It is a super-2 number, since 2×11654740521216² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2130273361 + ... + 2130278831.

Almost surely, 2^{11654740521216} is an apocalyptic number.

11654740521216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11654740521216 is the 3413904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11654740521216

11654740521216 is an abundant number, since it is smaller than the sum of its proper divisors (24739122836181).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11654740521216 is an frugal number, since it uses more digits than its factorization.

11654740521216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10990 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 11654740521216 in words is "eleven trillion, six hundred fifty-four billion, seven hundred forty million, five hundred twenty-one thousand, two hundred sixteen".