553647230640 has 120 divisors (see below), whose sum is σ = 2124950818848. Its totient is φ = 126547937280.

The previous prime is 553647230621. The next prime is 553647230657. The reversal of 553647230640 is 46032746355.

553647230640 is a `hidden beast` number, since 5 + 536 + 4 + 72 + 3 + 0 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 54920281 + ... + 54930360.

Almost surely, 2^553647230640 is an apocalyptic number.

It is an amenable number.

553647230640 is an abundant number, since it is smaller than the sum of its proper divisors (1571303588208).

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

553647230640 is a wasteful number, since it uses less digits than its factorization.

553647230640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109850667 (or 109850658 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

Adding to 553647230640 its reverse (46032746355), we get a palindrome (599679976995).

The spelling of 553647230640 in words is "five hundred fifty-three billion, six hundred forty-seven million, two hundred thirty thousand, six hundred forty".