201531600060 has 96 divisors (see below), whose sum is σ = 657069138432. Its totient is φ = 45195221760.

The previous prime is 201531600013. The next prime is 201531600073. The reversal of 201531600060 is 60006135102.

It is a super-2 number, since 2×201531600060² (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 201531600060.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4504506 + ... + 4549025.

It is an arithmetic number, because the mean of its divisors is an integer number (6844470192).

Almost surely, 2^201531600060 is an apocalyptic number.

201531600060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201531600060 is an abundant number, since it is smaller than the sum of its proper divisors (455537538372).

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

201531600060 is a wasteful number, since it uses less digits than its factorization.

201531600060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9053603 (or 9053601 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 201531600060 its reverse (60006135102), we get a palindrome (261537735162).

The spelling of 201531600060 in words is "two hundred one billion, five hundred thirty-one million, six hundred thousand, sixty".