54999347661 has 12 divisors (see below), whose sum is σ = 79446477760. Its totient is φ = 36664858440.

The previous prime is 54999347651. The next prime is 54999347677. The reversal of 54999347661 is 16674399945.

It is not a de Polignac number, because 54999347661 - 2¹⁰ = 54999346637 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 (54999347651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178716 + ... + 376746.

Almost surely, 2^54999347661 is an apocalyptic number.

It is an amenable number.

54999347661 is a deficient number, since it is larger than the sum of its proper divisors (24447130099).

54999347661 is a wasteful number, since it uses less digits than its factorization.

54999347661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228896 (or 228893 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The spelling of 54999347661 in words is "fifty-four billion, nine hundred ninety-nine million, three hundred forty-seven thousand, six hundred sixty-one".