551196721152 has 1536 divisors, whose sum is σ = 2198452838400. Its totient is φ = 133772083200.

The previous prime is 551196721087. The next prime is 551196721169. The reversal of 551196721152 is 251127691155.

551196721152 is a `hidden beast` number, since 5 + 511 + 9 + 6 + 72 + 11 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (1536).

It is a junction number, because it is equal to n+sod(n) for n = 551196721098 and 551196721107.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17780539377 + ... + 17780539407.

It is an arithmetic number, because the mean of its divisors is an integer number (1431284400).

Almost surely, 2^551196721152 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 551196721152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099226419200).

551196721152 is an abundant number, since it is smaller than the sum of its proper divisors (1647256117248).

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

551196721152 is an equidigital number, since it uses as much as digits as its factorization.

551196721152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 83 counting only the distinct ones).

The product of its digits is 189000, while the sum is 45.

The spelling of 551196721152 in words is "five hundred fifty-one billion, one hundred ninety-six million, seven hundred twenty-one thousand, one hundred fifty-two".