210042256320 has 672 divisors, whose sum is σ = 799099426944. Its totient is φ = 50319360000.

The previous prime is 210042256309. The next prime is 210042256327. The reversal of 210042256320 is 23652240012.

It is a happy number.

210042256320 is a `hidden beast` number, since 2 + 1 + 0 + 0 + 4 + 2 + 25 + 632 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210042256327) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 299631970 + ... + 299632670.

It is an arithmetic number, because the mean of its divisors is an integer number (1189136052).

Almost surely, 2^210042256320 is an apocalyptic number.

210042256320 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 210042256320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399549713472).

210042256320 is an abundant number, since it is smaller than the sum of its proper divisors (589057170624).

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

210042256320 is a wasteful number, since it uses less digits than its factorization.

210042256320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 210042256320 its reverse (23652240012), we get a palindrome (233694496332).

The spelling of 210042256320 in words is "two hundred ten billion, forty-two million, two hundred fifty-six thousand, three hundred twenty".