55730805427136 has 336 divisors, whose sum is σ = 136069812817920. Its totient is φ = 22535939543040.

The previous prime is 55730805427109. The next prime is 55730805427151. The reversal of 55730805427136 is 63172450803755.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2766747881 + ... + 2766768023.

Almost surely, 2^{55730805427136} is an apocalyptic number.

55730805427136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55730805427136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68034906408960).

55730805427136 is an abundant number, since it is smaller than the sum of its proper divisors (80339007390784).

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

55730805427136 is a wasteful number, since it uses less digits than its factorization.

55730805427136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20712 (or 20695 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 55730805427136 in words is "fifty-five trillion, seven hundred thirty billion, eight hundred five million, four hundred twenty-seven thousand, one hundred thirty-six".