512101300223540 has 24 divisors (see below), whose sum is σ = 1075413479801640. Its totient is φ = 204840377359488.

The previous prime is 512101300223509. The next prime is 512101300223563. The reversal of 512101300223540 is 45322003101215.

It can be written as a sum of positive squares in 4 ways, for example, as 17828982663844 + 494272317559696 = 4222438^2 + 22232236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23346974 + ... + 39614186.

It is an arithmetic number, because the mean of its divisors is an integer number (44808894991735).

Almost surely, 2^{512101300223540} is an apocalyptic number.

It is an amenable number.

512101300223540 is an abundant number, since it is smaller than the sum of its proper divisors (563312179578100).

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

512101300223540 is a wasteful number, since it uses less digits than its factorization.

512101300223540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17841251 (or 17841249 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 512101300223540 its reverse (45322003101215), we get a palindrome (557423303324755).

The spelling of 512101300223540 in words is "five hundred twelve trillion, one hundred one billion, three hundred million, two hundred twenty-three thousand, five hundred forty".