55774236672 has 624 divisors, whose sum is σ = 205469596800. Its totient is φ = 14450688000.

The previous prime is 55774236671. The next prime is 55774236677. The reversal of 55774236672 is 27663247755.

It is a happy number.

55774236672 is a `hidden beast` number, since 5 + 577 + 4 + 2 + 3 + 6 + 67 + 2 = 666.

It is a super-2 number, since 2×55774236672² (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 (55774236671) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139087672 + ... + 139088072.

It is an arithmetic number, because the mean of its divisors is an integer number (329278200).

Almost surely, 2^55774236672 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 55774236672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102734798400).

55774236672 is an abundant number, since it is smaller than the sum of its proper divisors (149695360128).

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

55774236672 is a wasteful number, since it uses less digits than its factorization.

55774236672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 424 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 54.

The spelling of 55774236672 in words is "fifty-five billion, seven hundred seventy-four million, two hundred thirty-six thousand, six hundred seventy-two".