550400164528 has 80 divisors (see below), whose sum is σ = 1171719648000. Its totient is φ = 249297903360.

The previous prime is 550400164519. The next prime is 550400164529. The reversal of 550400164528 is 825461004055.

It is a super-2 number, since 2×550400164528² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550400164529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24397798 + ... + 24420346.

It is an arithmetic number, because the mean of its divisors is an integer number (14646495600).

Almost surely, 2^550400164528 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 550400164528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585859824000).

550400164528 is an abundant number, since it is smaller than the sum of its proper divisors (621319483472).

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

550400164528 is a wasteful number, since it uses less digits than its factorization.

550400164528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26090 (or 26084 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 550400164528 in words is "five hundred fifty billion, four hundred million, one hundred sixty-four thousand, five hundred twenty-eight".