11660000223551 has 4 divisors (see below), whose sum is σ = 11660033361600. Its totient is φ = 11659967085504.

The previous prime is 11660000223541. The next prime is 11660000223559. The reversal of 11660000223551 is 15532200006611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11660000223551 - 2²² = 11659996029247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660000223559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16035506 + ... + 16746863.

It is an arithmetic number, because the mean of its divisors is an integer number (2915008340400).

Almost surely, 2^{11660000223551} is an apocalyptic number.

11660000223551 is a deficient number, since it is larger than the sum of its proper divisors (33138049).

11660000223551 is an equidigital number, since it uses as much as digits as its factorization.

11660000223551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33138048.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 11660000223551 in words is "eleven trillion, six hundred sixty billion, two hundred twenty-three thousand, five hundred fifty-one".