551430996480 has 2240 divisors, whose sum is σ = 2596801794048. Its totient is φ = 108928696320.

The previous prime is 551430996451. The next prime is 551430996511. The reversal of 551430996480 is 84699034155.

551430996480 is a `hidden beast` number, since 5 + 514 + 30 + 9 + 96 + 4 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2240).

It is a super-2 number, since 2×551430996480² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 2887073185 + ... + 2887073375.

Almost surely, 2^551430996480 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 551430996480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298400897024).

551430996480 is an abundant number, since it is smaller than the sum of its proper divisors (2045370797568).

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

551430996480 is a wasteful number, since it uses less digits than its factorization.

551430996480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 551430996480 in words is "five hundred fifty-one billion, four hundred thirty million, nine hundred ninety-six thousand, four hundred eighty".