655350540000 has 480 divisors, whose sum is σ = 2389807816704. Its totient is φ = 156107520000.

The previous prime is 655350539983. The next prime is 655350540001. The reversal of 655350540000 is 45053556.

It is a tau number, because it is divible by the number of its divisors (480).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655350540001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 24166449 + ... + 24193551.

Almost surely, 2^655350540000 is an apocalyptic number.

655350540000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655350540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1194903908352).

655350540000 is an abundant number, since it is smaller than the sum of its proper divisors (1734457276704).

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

655350540000 is a wasteful number, since it uses less digits than its factorization.

655350540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27180 (or 27157 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

Adding to 655350540000 its reverse (45053556), we get a palindrome (655395593556).

The spelling of 655350540000 in words is "six hundred fifty-five billion, three hundred fifty million, five hundred forty thousand".