210156068128 has 24 divisors (see below), whose sum is σ = 417761705088. Its totient is φ = 104057857344.

The previous prime is 210156068123. The next prime is 210156068131. The reversal of 210156068128 is 821860651012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (210156068123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31877176 + ... + 31883767.

It is an arithmetic number, because the mean of its divisors is an integer number (17406737712).

Almost surely, 2^210156068128 is an apocalyptic number.

It is an amenable number.

210156068128 is a deficient number, since it is larger than the sum of its proper divisors (207605636960).

210156068128 is a wasteful number, since it uses less digits than its factorization.

210156068128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63761056 (or 63761048 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 210156068128 in words is "two hundred ten billion, one hundred fifty-six million, sixty-eight thousand, one hundred twenty-eight".