201528533328 has 80 divisors (see below), whose sum is σ = 557000212800. Its totient is φ = 62597283840.

The previous prime is 201528533293. The next prime is 201528533351. The reversal of 201528533328 is 823335825102.

It is a super-2 number, since 2×201528533328² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201528533328.

It is a congruent number.

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, 1755633 + ... + 1866896.

It is an arithmetic number, because the mean of its divisors is an integer number (6962502660).

Almost surely, 2^201528533328 is an apocalyptic number.

It is an amenable number.

201528533328 is an abundant number, since it is smaller than the sum of its proper divisors (355471679472).

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

201528533328 is a wasteful number, since it uses less digits than its factorization.

201528533328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622620 (or 3622614 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 201528533328 in words is "two hundred one billion, five hundred twenty-eight million, five hundred thirty-three thousand, three hundred twenty-eight".