55691066404328 has 8 divisors (see below), whose sum is σ = 104420749508130. Its totient is φ = 27845533202160.

The previous prime is 55691066404291. The next prime is 55691066404331. The reversal of 55691066404328 is 82340466019655.

It can be written as a sum of positive squares in only one way, i.e., 33135196917124 + 22555869487204 = 5756318^2 + 4749302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3480691650263 + ... + 3480691650278.

Almost surely, 2^{55691066404328} is an apocalyptic number.

It is an amenable number.

55691066404328 is a deficient number, since it is larger than the sum of its proper divisors (48729683103802).

55691066404328 is a wasteful number, since it uses less digits than its factorization.

55691066404328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961383300547 (or 6961383300543 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 59.

The spelling of 55691066404328 in words is "fifty-five trillion, six hundred ninety-one billion, sixty-six million, four hundred four thousand, three hundred twenty-eight".