201632403520 has 112 divisors (see below), whose sum is σ = 501257547648. Its totient is φ = 77108613120.

The previous prime is 201632403517. The next prime is 201632403619. The reversal of 201632403520 is 25304236102.

It is a super-2 number, since 2×201632403520² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18549127 + ... + 18559993.

Almost surely, 2^201632403520 is an apocalyptic number.

201632403520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201632403520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250628773824).

201632403520 is an abundant number, since it is smaller than the sum of its proper divisors (299625144128).

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

201632403520 is a wasteful number, since it uses less digits than its factorization.

201632403520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13428 (or 13418 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 201632403520 its reverse (25304236102), we get a palindrome (226936639622).

The spelling of 201632403520 in words is "two hundred one billion, six hundred thirty-two million, four hundred three thousand, five hundred twenty".