55136620719936 has 336 divisors, whose sum is σ = 183926670520320. Its totient is φ = 15466438149120.

The previous prime is 55136620719839. The next prime is 55136620720039. The reversal of 55136620719936 is 63991702663155.

55136620719936 is a `hidden beast` number, since 5 + 51 + 366 + 2 + 0 + 7 + 199 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 68016075 + ... + 68821941.

It is an arithmetic number, because the mean of its divisors is an integer number (547400805120).

Almost surely, 2^{55136620719936} is an apocalyptic number.

55136620719936 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 55136620719936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91963335260160).

55136620719936 is an abundant number, since it is smaller than the sum of its proper divisors (128790049800384).

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

55136620719936 is a wasteful number, since it uses less digits than its factorization.

55136620719936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806202 (or 806189 counting only the distinct ones).

The product of its (nonzero) digits is 55112400, while the sum is 63.

The spelling of 55136620719936 in words is "fifty-five trillion, one hundred thirty-six billion, six hundred twenty million, seven hundred nineteen thousand, nine hundred thirty-six".