11166520326554 has 8 divisors (see below), whose sum is σ = 16881668525568. Its totient is φ = 5539297484700.

The previous prime is 11166520326553. The next prime is 11166520326571. The reversal of 11166520326554 is 45562302566111.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11166520326499 and 11166520326508.

It is not an unprimeable number, because it can be changed into a prime (11166520326553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21981338972 + ... + 21981339479.

It is an arithmetic number, because the mean of its divisors is an integer number (2110208565696).

Almost surely, 2^{11166520326554} is an apocalyptic number.

11166520326554 is a deficient number, since it is larger than the sum of its proper divisors (5715148199014).

11166520326554 is a wasteful number, since it uses less digits than its factorization.

11166520326554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43962678580.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 11166520326554 in words is "eleven trillion, one hundred sixty-six billion, five hundred twenty million, three hundred twenty-six thousand, five hundred fifty-four".