2655689400 has 576 divisors, whose sum is σ = 11352606720. Its totient is φ = 541209600.

The previous prime is 2655689371. The next prime is 2655689419. The reversal of 2655689400 is 49865562.

2655689400 is a `hidden beast` number, since 2 + 6 + 556 + 8 + 94 + 0 + 0 = 666.

2655689400 is digitally balanced in base 2, because in such base 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 a congruent number.

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, 5077539 + ... + 5078061.

Almost surely, 2^2655689400 is an apocalyptic number.

2655689400 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 2655689400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5676303360).

2655689400 is an abundant number, since it is smaller than the sum of its proper divisors (8696917320).

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

2655689400 is a wasteful number, since it uses less digits than its factorization.

2655689400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 2655689400 is about 51533.3814143803. The cubic root of 2655689400 is about 1384.8171288657.

The spelling of 2655689400 in words is "two billion, six hundred fifty-five million, six hundred eighty-nine thousand, four hundred".