223513857000 has 512 divisors, whose sum is σ = 891596160000. Its totient is φ = 50739609600.

The previous prime is 223513856947. The next prime is 223513857011. The reversal of 223513857000 is 758315322.

It is a happy number.

223513857000 is a `hidden beast` number, since 2 + 2 + 3 + 51 + 38 + 570 + 0 + 0 = 666.

223513857000 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 (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28157032 + ... + 28164968.

It is an arithmetic number, because the mean of its divisors is an integer number (1741398750).

Almost surely, 2^223513857000 is an apocalyptic number.

223513857000 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 223513857000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445798080000).

223513857000 is an abundant number, since it is smaller than the sum of its proper divisors (668082303000).

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

223513857000 is a wasteful number, since it uses less digits than its factorization.

223513857000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123 (or 8103 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 223513857000 in words is "two hundred twenty-three billion, five hundred thirteen million, eight hundred fifty-seven thousand".