53530837668 has 216 divisors, whose sum is σ = 179213396544. Its totient is φ = 13086028800.

The previous prime is 53530837649. The next prime is 53530837669. The reversal of 53530837668 is 86673803535.

It is a happy number.

53530837668 is a `hidden beast` number, since 535 + 30 + 8 + 3 + 76 + 6 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (53530837669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 767698 + ... + 834518.

Almost surely, 2^53530837668 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 53530837668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89606698272).

53530837668 is an abundant number, since it is smaller than the sum of its proper divisors (125682558876).

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

53530837668 is a wasteful number, since it uses less digits than its factorization.

53530837668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66883 (or 66861 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

It can be divided in two parts, 53530 and 837668, that added together give a palindrome (891198).

The spelling of 53530837668 in words is "fifty-three billion, five hundred thirty million, eight hundred thirty-seven thousand, six hundred sixty-eight".