551048300640 has 336 divisors, whose sum is σ = 2066708685888. Its totient is φ = 138301820928.

The previous prime is 551048300563. The next prime is 551048300741. The reversal of 551048300640 is 46003840155.

It is a happy number.

551048300640 is a `hidden beast` number, since 5 + 5 + 1 + 0 + 4 + 8 + 3 + 0 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 551048300595 and 551048300604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1843929 + ... + 2121831.

It is an arithmetic number, because the mean of its divisors is an integer number (6150918708).

Almost surely, 2^551048300640 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 551048300640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033354342944).

551048300640 is an abundant number, since it is smaller than the sum of its proper divisors (1515660385248).

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

551048300640 is a wasteful number, since it uses less digits than its factorization.

551048300640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277953 (or 277930 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 551048300640 in words is "five hundred fifty-one billion, forty-eight million, three hundred thousand, six hundred forty".