655107581798400 has 1152 divisors, whose sum is σ = 2282161232332800. Its totient is φ = 165597767270400.

The previous prime is 655107581798393. The next prime is 655107581798443. The reversal of 655107581798400 is 4897185701556.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 41142212839 + ... + 41142228761.

It is an arithmetic number, because the mean of its divisors is an integer number (1981042736400).

Almost surely, 2^{655107581798400} is an apocalyptic number.

655107581798400 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 655107581798400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1141080616166400).

655107581798400 is an abundant number, since it is smaller than the sum of its proper divisors (1627053650534400).

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

655107581798400 is a wasteful number, since it uses less digits than its factorization.

655107581798400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16185 (or 16160 counting only the distinct ones).

The product of its (nonzero) digits is 84672000, while the sum is 66.

The spelling of 655107581798400 in words is "six hundred fifty-five trillion, one hundred seven billion, five hundred eighty-one million, seven hundred ninety-eight thousand, four hundred".