201620450146 has 8 divisors (see below), whose sum is σ = 302435211600. Its totient is φ = 100808712948.

The previous prime is 201620450113. The next prime is 201620450153. The reversal of 201620450146 is 641054026102.

It is a happy number.

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

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, 581316 + ... + 860911.

It is an arithmetic number, because the mean of its divisors is an integer number (37804401450).

Almost surely, 2^201620450146 is an apocalyptic number.

201620450146 is a deficient number, since it is larger than the sum of its proper divisors (100814761454).

201620450146 is a wasteful number, since it uses less digits than its factorization.

201620450146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512128.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 201620450146 its reverse (641054026102), we get a palindrome (842674476248).

The spelling of 201620450146 in words is "two hundred one billion, six hundred twenty million, four hundred fifty thousand, one hundred forty-six".