20650210156 has 24 divisors (see below), whose sum is σ = 37224789056. Its totient is φ = 10016213760.

The previous prime is 20650210123. The next prime is 20650210181. The reversal of 20650210156 is 65101205602.

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, 157140 + ... + 256891.

Almost surely, 2^20650210156 is an apocalyptic number.

It is an amenable number.

20650210156 is a deficient number, since it is larger than the sum of its proper divisors (16574578900).

20650210156 is a wasteful number, since it uses less digits than its factorization.

20650210156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414409 (or 414407 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 20650210156 its reverse (65101205602), we get a palindrome (85751415758).

The spelling of 20650210156 in words is "twenty billion, six hundred fifty million, two hundred ten thousand, one hundred fifty-six".