54655655646 has 32 divisors (see below), whose sum is σ = 113099452416. Its totient is φ = 17589924000.

The previous prime is 54655655623. The next prime is 54655655729. The reversal of 54655655646 is 64655655645.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 260725 + ... + 421056.

It is an arithmetic number, because the mean of its divisors is an integer number (3534357888).

Almost surely, 2^54655655646 is an apocalyptic number.

54655655646 is an abundant number, since it is smaller than the sum of its proper divisors (58443796770).

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

54655655646 is a wasteful number, since it uses less digits than its factorization.

54655655646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682248.

The product of its digits is 64800000, while the sum is 57.

Subtracting 54655655646 from its reverse (64655655645), we obtain a palindrome (9999999999).

The spelling of 54655655646 in words is "fifty-four billion, six hundred fifty-five million, six hundred fifty-five thousand, six hundred forty-six".