20555143150 has 12 divisors (see below), whose sum is σ = 38232566352. Its totient is φ = 8222057240.

The previous prime is 20555143129. The next prime is 20555143177. The reversal of 20555143150 is 5134155502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205551382 + ... + 205551481.

It is an arithmetic number, because the mean of its divisors is an integer number (3186047196).

Almost surely, 2^20555143150 is an apocalyptic number.

20555143150 is a deficient number, since it is larger than the sum of its proper divisors (17677423202).

20555143150 is a wasteful number, since it uses less digits than its factorization.

20555143150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411102875 (or 411102870 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 20555143150 its reverse (5134155502), we get a palindrome (25689298652).

The spelling of 20555143150 in words is "twenty billion, five hundred fifty-five million, one hundred forty-three thousand, one hundred fifty".