2655636480000 has 840 divisors, whose sum is σ = 10956924449328. Its totient is φ = 606928896000.

The previous prime is 2655636479999. The next prime is 2655636480017. The reversal of 2655636480000 is 846365562.

2655636480000 is a `hidden beast` number, since 2 + 6 + 5 + 5 + 636 + 4 + 8 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (840).

It is a super-2 number, since 2×2655636480000² (a number of 26 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 322555884 + ... + 322564116.

Almost surely, 2^{2655636480000} is an apocalyptic number.

2655636480000 is a gapful number since it is divisible by the number (20) 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 2655636480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5478462224664).

2655636480000 is an abundant number, since it is smaller than the sum of its proper divisors (8301287969328).

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

2655636480000 is an frugal number, since it uses more digits than its factorization.

2655636480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8292 (or 8250 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 2655636480000 in words is "two trillion, six hundred fifty-five billion, six hundred thirty-six million, four hundred eighty thousand".