2655499140 has 432 divisors, whose sum is σ = 9919728000. Its totient is φ = 596683584.

The previous prime is 2655499129. The next prime is 2655499157. The reversal of 2655499140 is 419945562.

2655499140 is a `hidden beast` number, since 2 + 6 + 554 + 9 + 91 + 4 + 0 = 666.

2655499140 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 45008431 + ... + 45008489.

Almost surely, 2^2655499140 is an apocalyptic number.

2655499140 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 2655499140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4959864000).

2655499140 is an abundant number, since it is smaller than the sum of its proper divisors (7264228860).

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

2655499140 is an frugal number, since it uses more digits than its factorization.

2655499140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 2655499140 is about 51531.5353933880. The cubic root of 2655499140 is about 1384.7840575285.

The spelling of 2655499140 in words is "two billion, six hundred fifty-five million, four hundred ninety-nine thousand, one hundred forty".