55806412896 has 144 divisors (see below), whose sum is σ = 171545577840. Its totient is φ = 17107061760.

The previous prime is 55806412891. The next prime is 55806412897. The reversal of 55806412896 is 69821460855.

55806412896 is a `hidden beast` number, since 558 + 0 + 6 + 4 + 1 + 2 + 89 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×55806412896² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55806412891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 979431 + ... + 1034841.

It is an arithmetic number, because the mean of its divisors is an integer number (1191288735).

Almost surely, 2^55806412896 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 55806412896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85772788920).

55806412896 is an abundant number, since it is smaller than the sum of its proper divisors (115739164944).

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

55806412896 is a wasteful number, since it uses less digits than its factorization.

55806412896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55709 (or 55698 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 55806412896 in words is "fifty-five billion, eight hundred six million, four hundred twelve thousand, eight hundred ninety-six".