55400668848 has 160 divisors (see below), whose sum is σ = 182058347520. Its totient is φ = 15800832000.

The previous prime is 55400668823. The next prime is 55400668861. The reversal of 55400668848 is 84886600455.

55400668848 is a `hidden beast` number, since 554 + 0 + 0 + 6 + 6 + 8 + 84 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 55400668794 and 55400668803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1728973 + ... + 1760723.

It is an arithmetic number, because the mean of its divisors is an integer number (1137864672).

Almost surely, 2^55400668848 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 55400668848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91029173760).

55400668848 is an abundant number, since it is smaller than the sum of its proper divisors (126657678672).

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

55400668848 is a wasteful number, since it uses less digits than its factorization.

55400668848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32352 (or 32340 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 54.

The spelling of 55400668848 in words is "fifty-five billion, four hundred million, six hundred sixty-eight thousand, eight hundred forty-eight".