55174777344 has 160 divisors (see below), whose sum is σ = 164230946880. Its totient is φ = 18289152000.

The previous prime is 55174777327. The next prime is 55174777379. The reversal of 55174777344 is 44377747155.

55174777344 is a `hidden beast` number, since 55 + 17 + 477 + 73 + 44 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2491119 + ... + 2513169.

It is an arithmetic number, because the mean of its divisors is an integer number (1026443418).

Almost surely, 2^55174777344 is an apocalyptic number.

55174777344 is a gapful number since it is divisible by the number (54) 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 55174777344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82115473440).

55174777344 is an abundant number, since it is smaller than the sum of its proper divisors (109056169536).

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

55174777344 is a wasteful number, since it uses less digits than its factorization.

55174777344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22259 (or 22237 counting only the distinct ones).

The product of its digits is 11524800, while the sum is 54.

The spelling of 55174777344 in words is "fifty-five billion, one hundred seventy-four million, seven hundred seventy-seven thousand, three hundred forty-four".