551244511412 has 72 divisors (see below), whose sum is σ = 1161110684160. Its totient is φ = 228054294720.

The previous prime is 551244511373. The next prime is 551244511417. The reversal of 551244511412 is 214115442155.

It is a super-2 number, since 2×551244511412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551244511417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47916053 + ... + 47927555.

It is an arithmetic number, because the mean of its divisors is an integer number (16126537280).

Almost surely, 2^551244511412 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 551244511412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580555342080).

551244511412 is an abundant number, since it is smaller than the sum of its proper divisors (609866172748).

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

551244511412 is a wasteful number, since it uses less digits than its factorization.

551244511412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19981 (or 19972 counting only the distinct ones).

The product of its digits is 32000, while the sum is 35.

Adding to 551244511412 its reverse (214115442155), we get a palindrome (765359953567).

The spelling of 551244511412 in words is "five hundred fifty-one billion, two hundred forty-four million, five hundred eleven thousand, four hundred twelve".