20255615230 has 16 divisors (see below), whose sum is σ = 36489604320. Its totient is φ = 8095691232.

The previous prime is 20255615221. The next prime is 20255615269. The reversal of 20255615230 is 3251655202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20255615192 and 20255615201.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 806370 + ... + 831109.

It is an arithmetic number, because the mean of its divisors is an integer number (2280600270).

Almost surely, 2^20255615230 is an apocalyptic number.

20255615230 is a deficient number, since it is larger than the sum of its proper divisors (16233989090).

20255615230 is a wasteful number, since it uses less digits than its factorization.

20255615230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638723.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20255615230 in words is "twenty billion, two hundred fifty-five million, six hundred fifteen thousand, two hundred thirty".