201513550105 has 32 divisors (see below), whose sum is σ = 284350553856. Its totient is φ = 134199846144.

The previous prime is 201513550087. The next prime is 201513550127. The reversal of 201513550105 is 501055315102.

It is not a de Polignac number, because 201513550105 - 2³³ = 192923615513 is a prime.

It is a super-2 number, since 2×201513550105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian 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, 566127 + ... + 850603.

It is an arithmetic number, because the mean of its divisors is an integer number (8885954808).

Almost surely, 2^201513550105 is an apocalyptic number.

It is an amenable number.

201513550105 is a deficient number, since it is larger than the sum of its proper divisors (82837003751).

201513550105 is a wasteful number, since it uses less digits than its factorization.

201513550105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285073.

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 201513550105 its reverse (501055315102), we get a palindrome (702568865207).

The spelling of 201513550105 in words is "two hundred one billion, five hundred thirteen million, five hundred fifty thousand, one hundred five".