55646320011 has 8 divisors (see below), whose sum is σ = 76588483584. Its totient is φ = 35900851560.

The previous prime is 55646319961. The next prime is 55646320021. The reversal of 55646320011 is 11002364655.

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

It is not a de Polignac number, because 55646320011 - 2⁶ = 55646319947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55646320021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299173671 + ... + 299173856.

It is an arithmetic number, because the mean of its divisors is an integer number (9573560448).

Almost surely, 2^55646320011 is an apocalyptic number.

55646320011 is a deficient number, since it is larger than the sum of its proper divisors (20942163573).

55646320011 is a wasteful number, since it uses less digits than its factorization.

55646320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598347561.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 55646320011 its reverse (11002364655), we get a palindrome (66648684666).

The spelling of 55646320011 in words is "fifty-five billion, six hundred forty-six million, three hundred twenty thousand, eleven".