265201021016 has 16 divisors (see below), whose sum is σ = 499047051840. Its totient is φ = 132121807200.

The previous prime is 265201020977. The next prime is 265201021069. The reversal of 265201021016 is 610120102562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59835560 + ... + 59839991.

It is an arithmetic number, because the mean of its divisors is an integer number (31190440740).

Almost surely, 2^265201021016 is an apocalyptic number.

It is an amenable number.

265201021016 is a deficient number, since it is larger than the sum of its proper divisors (233846030824).

265201021016 is a wasteful number, since it uses less digits than its factorization.

265201021016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119675834 (or 119675830 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 265201021016 its reverse (610120102562), we get a palindrome (875321123578).

The spelling of 265201021016 in words is "two hundred sixty-five billion, two hundred one million, twenty-one thousand, sixteen".