201151915285 has 16 divisors (see below), whose sum is σ = 257843050416. Its totient is φ = 150115237888.

The previous prime is 201151915273. The next prime is 201151915301. The reversal of 201151915285 is 582519151102.

It can be written as a sum of positive squares in 8 ways, for example, as 1028998084 + 200122917201 = 32078^2 + 447351^2 .

It is a cyclic number.

It is not a de Polignac number, because 201151915285 - 2⁹ = 201151914773 is a prime.

It is a Duffinian number.

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, 10461604 + ... + 10480813.

It is an arithmetic number, because the mean of its divisors is an integer number (16115190651).

Almost surely, 2^201151915285 is an apocalyptic number.

It is an amenable number.

201151915285 is a deficient number, since it is larger than the sum of its proper divisors (56691135131).

201151915285 is a wasteful number, since it uses less digits than its factorization.

201151915285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20942552.

The product of its (nonzero) digits is 36000, while the sum is 40.

The spelling of 201151915285 in words is "two hundred one billion, one hundred fifty-one million, nine hundred fifteen thousand, two hundred eighty-five".