54891776656 has 10 divisors (see below), whose sum is σ = 106352817302. Its totient is φ = 27445888320.

The previous prime is 54891776633. The next prime is 54891776659. The reversal of 54891776656 is 65667719845.

It can be written as a sum of positive squares in only one way, i.e., 30455834256 + 24435942400 = 174516^2 + 156320^2 .

It is not an unprimeable number, because it can be changed into a prime (54891776659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715368005 + ... + 1715368036.

Almost surely, 2^54891776656 is an apocalyptic number.

It is an amenable number.

54891776656 is a deficient number, since it is larger than the sum of its proper divisors (51461040646).

54891776656 is a wasteful number, since it uses less digits than its factorization.

54891776656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430736049 (or 3430736043 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 64.

The spelling of 54891776656 in words is "fifty-four billion, eight hundred ninety-one million, seven hundred seventy-six thousand, six hundred fifty-six".