65520651601012 has 24 divisors (see below), whose sum is σ = 118728047277000. Its totient is φ = 31600506180096.

The previous prime is 65520651600991. The next prime is 65520651601039. The reversal of 65520651601012 is 21010615602556.

65520651601012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7314677248356 + 58205974352656 = 2704566^2 + 7629284^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269102913 + ... + 269346280.

It is an arithmetic number, because the mean of its divisors is an integer number (4947001969875).

Almost surely, 2^{65520651601012} is an apocalyptic number.

It is an amenable number.

65520651601012 is a deficient number, since it is larger than the sum of its proper divisors (53207395675988).

65520651601012 is a wasteful number, since it uses less digits than its factorization.

65520651601012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538450275 (or 538450273 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 65520651601012 in words is "sixty-five trillion, five hundred twenty billion, six hundred fifty-one million, six hundred one thousand, twelve".