11655540113551 has 8 divisors (see below), whose sum is σ = 11846704916624. Its totient is φ = 11464378225920.

The previous prime is 11655540113491. The next prime is 11655540113639. The reversal of 11655540113551 is 15531104555611.

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 11655540113551 - 2¹⁵ = 11655540080783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11655540113498 and 11655540113507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11655540116551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8227600 + ... + 9539626.

It is an arithmetic number, because the mean of its divisors is an integer number (1480838114578).

Almost surely, 2^{11655540113551} is an apocalyptic number.

11655540113551 is a deficient number, since it is larger than the sum of its proper divisors (191164803073).

11655540113551 is a wasteful number, since it uses less digits than its factorization.

11655540113551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457721.

The product of its (nonzero) digits is 225000, while the sum is 43.

The spelling of 11655540113551 in words is "eleven trillion, six hundred fifty-five billion, five hundred forty million, one hundred thirteen thousand, five hundred fifty-one".