55866626443200 has 336 divisors, whose sum is σ = 191771079008256. Its totient is φ = 14211823718400.

The previous prime is 55866626443171. The next prime is 55866626443241. The reversal of 55866626443200 is 234462666855.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

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, 40500865 + ... + 41857535.

Almost surely, 2^{55866626443200} is an apocalyptic number.

55866626443200 is a gapful number since it is divisible by the number (50) 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 55866626443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95885539504128).

55866626443200 is an abundant number, since it is smaller than the sum of its proper divisors (135904452565056).

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

55866626443200 is a wasteful number, since it uses less digits than its factorization.

55866626443200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357092 (or 1357077 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 57.

The spelling of 55866626443200 in words is "fifty-five trillion, eight hundred sixty-six billion, six hundred twenty-six million, four hundred forty-three thousand, two hundred".