551400879543360 has 896 divisors, whose sum is σ = 2261061586649088. Its totient is φ = 110488845312000.

The previous prime is 551400879543299. The next prime is 551400879543407. The reversal of 551400879543360 is 63345978004155.

It is a happy number.

It is a super-2 number, since 2×551400879543360² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 551400879543294 and 551400879543303.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 648075025 + ... + 648925295.

Almost surely, 2^{551400879543360} 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 551400879543360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130530793324544).

551400879543360 is an abundant number, since it is smaller than the sum of its proper divisors (1709660707105728).

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

551400879543360 is a wasteful number, since it uses less digits than its factorization.

551400879543360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850623 (or 850613 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 551400879543360 in words is "five hundred fifty-one trillion, four hundred billion, eight hundred seventy-nine million, five hundred forty-three thousand, three hundred sixty".