55464406338 has 64 divisors (see below), whose sum is σ = 126154174464. Its totient is φ = 16104120000.

The previous prime is 55464406337. The next prime is 55464406351. The reversal of 55464406338 is 83360446455.

It is not an unprimeable number, because it can be changed into a prime (55464406337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72445 + ... + 340847.

It is an arithmetic number, because the mean of its divisors is an integer number (1971158976).

Almost surely, 2^55464406338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55464406338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63077087232).

55464406338 is an abundant number, since it is smaller than the sum of its proper divisors (70689768126).

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

55464406338 is a wasteful number, since it uses less digits than its factorization.

55464406338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268551.

The product of its (nonzero) digits is 4147200, while the sum is 48.

It can be divided in two parts, 5546440 and 6338, that added together give a triangular number (5552778 = T₃₃₃₂).

The spelling of 55464406338 in words is "fifty-five billion, four hundred sixty-four million, four hundred six thousand, three hundred thirty-eight".