6655493400 has 192 divisors, whose sum is σ = 21270439200. Its totient is φ = 1720258560.

The previous prime is 6655493393. The next prime is 6655493443. The reversal of 6655493400 is 43945566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9079434 + ... + 9080166.

Almost surely, 2^6655493400 is an apocalyptic number.

6655493400 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 6655493400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10635219600).

6655493400 is an abundant number, since it is smaller than the sum of its proper divisors (14614945800).

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

6655493400 is a wasteful number, since it uses less digits than its factorization.

6655493400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 6655493400 is about 81581.2073948406. The cubic root of 6655493400 is about 1881.0200251616.

The spelling of 6655493400 in words is "six billion, six hundred fifty-five million, four hundred ninety-three thousand, four hundred".