55609170066432 has 396 divisors, whose sum is σ = 166732280682240. Its totient is φ = 17849081659392.

The previous prime is 55609170066427. The next prime is 55609170066451. The reversal of 55609170066432 is 23466007190655.

55609170066432 is a `hidden beast` number, since 5 + 5 + 60 + 91 + 7 + 0 + 0 + 66 + 432 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1223797569 + ... + 1223843007.

Almost surely, 2^{55609170066432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55609170066432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83366140341120).

55609170066432 is an abundant number, since it is smaller than the sum of its proper divisors (111123110615808).

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

55609170066432 is a wasteful number, since it uses less digits than its factorization.

55609170066432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45636 (or 45578 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 55609170066432 in words is "fifty-five trillion, six hundred nine billion, one hundred seventy million, sixty-six thousand, four hundred thirty-two".