55611320741760 has 512 divisors, whose sum is σ = 214760286489600. Its totient is φ = 11948971917312.

The previous prime is 55611320741731. The next prime is 55611320741761. The reversal of 55611320741760 is 6714702311655.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611320741761) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189263119 + ... + 189556721.

It is an arithmetic number, because the mean of its divisors is an integer number (419453684550).

Almost surely, 2^{55611320741760} 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 55611320741760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107380143244800).

55611320741760 is an abundant number, since it is smaller than the sum of its proper divisors (159148965747840).

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

55611320741760 is a wasteful number, since it uses less digits than its factorization.

55611320741760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294478 (or 294466 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 55611320741760 in words is "fifty-five trillion, six hundred eleven billion, three hundred twenty million, seven hundred forty-one thousand, seven hundred sixty".