201602100520 has 16 divisors (see below), whose sum is σ = 453604726260. Its totient is φ = 80640840192.

The previous prime is 201602100467. The next prime is 201602100521. The reversal of 201602100520 is 25001206102.

It can be written as a sum of positive squares in 2 ways, for example, as 172994437476 + 28607663044 = 415926^2 + 169138^2 .

It is not an unprimeable number, because it can be changed into a prime (201602100521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2520026217 + ... + 2520026296.

Almost surely, 2^201602100520 is an apocalyptic number.

201602100520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201602100520 is an abundant number, since it is smaller than the sum of its proper divisors (252002625740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201602100520 is a wasteful number, since it uses less digits than its factorization.

201602100520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040052524 (or 5040052520 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 201602100520 its reverse (25001206102), we get a palindrome (226603306622).

The spelling of 201602100520 in words is "two hundred one billion, six hundred two million, one hundred thousand, five hundred twenty".