20542150210 has 8 divisors (see below), whose sum is σ = 36975870396. Its totient is φ = 8216860080.

The previous prime is 20542150201. The next prime is 20542150229. The reversal of 20542150210 is 1205124502.

It can be written as a sum of positive squares in 2 ways, for example, as 20397838041 + 144312169 = 142821^2 + 12013^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027107501 + ... + 1027107520.

Almost surely, 2^20542150210 is an apocalyptic number.

20542150210 is a deficient number, since it is larger than the sum of its proper divisors (16433720186).

20542150210 is a wasteful number, since it uses less digits than its factorization.

20542150210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054215028.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 20542150210 its reverse (1205124502), we get a palindrome (21747274712).

The spelling of 20542150210 in words is "twenty billion, five hundred forty-two million, one hundred fifty thousand, two hundred ten".