20344555153250 has 32 divisors (see below), whose sum is σ = 38089519902720. Its totient is φ = 8136857818800.

The previous prime is 20344555153213. The next prime is 20344555153253. The reversal of 20344555153250 is 5235155544302.

It is a super-2 number, since 2×20344555153250² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20344555153253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2705240 + ... + 6928739.

It is an arithmetic number, because the mean of its divisors is an integer number (1190297496960).

Almost surely, 2^{20344555153250} is an apocalyptic number.

20344555153250 is a deficient number, since it is larger than the sum of its proper divisors (17744964749470).

20344555153250 is an equidigital number, since it uses as much as digits as its factorization.

20344555153250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642443 (or 9642433 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 44.

The spelling of 20344555153250 in words is "twenty trillion, three hundred forty-four billion, five hundred fifty-five million, one hundred fifty-three thousand, two hundred fifty".