55133698587648 has 88 divisors (see below), whose sum is σ = 147039786436608. Its totient is φ = 18366846775296.

The previous prime is 55133698587613. The next prime is 55133698587679. The reversal of 55133698587648 is 84678589633155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287286 + ... + 10504757.

Almost surely, 2^{55133698587648} 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 55133698587648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73519893218304).

55133698587648 is an abundant number, since it is smaller than the sum of its proper divisors (91906087848960).

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

55133698587648 is a wasteful number, since it uses less digits than its factorization.

55133698587648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10793729 (or 10793711 counting only the distinct ones).

The product of its digits is 5225472000, while the sum is 78.

The spelling of 55133698587648 in words is "fifty-five trillion, one hundred thirty-three billion, six hundred ninety-eight million, five hundred eighty-seven thousand, six hundred forty-eight".