636246216142 has 8 divisors (see below), whose sum is σ = 954467772336. Its totient is φ = 318090292032.

The previous prime is 636246216131. The next prime is 636246216157. The reversal of 636246216142 is 241612642636.

636246216142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16383778 + ... + 16422565.

It is an arithmetic number, because the mean of its divisors is an integer number (119308471542).

Almost surely, 2^636246216142 is an apocalyptic number.

636246216142 is a deficient number, since it is larger than the sum of its proper divisors (318221556194).

636246216142 is a wasteful number, since it uses less digits than its factorization.

636246216142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32816042.

The product of its digits is 497664, while the sum is 43.

Adding to 636246216142 its reverse (241612642636), we get a palindrome (877858858778).

The spelling of 636246216142 in words is "six hundred thirty-six billion, two hundred forty-six million, two hundred sixteen thousand, one hundred forty-two".