201532015640 has 32 divisors (see below), whose sum is σ = 454456980000. Its totient is φ = 80433260544.

The previous prime is 201532015637. The next prime is 201532015681. The reversal of 201532015640 is 46510235102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5592620 + ... + 5628539.

It is an arithmetic number, because the mean of its divisors is an integer number (14201780625).

Almost surely, 2^201532015640 is an apocalyptic number.

201532015640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201532015640 is an abundant number, since it is smaller than the sum of its proper divisors (252924964360).

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

201532015640 is a wasteful number, since it uses less digits than its factorization.

201532015640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221619 (or 11221615 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 201532015640 in words is "two hundred one billion, five hundred thirty-two million, fifteen thousand, six hundred forty".