52112111506640 has 80 divisors (see below), whose sum is σ = 128499106102272. Its totient is φ = 19586356242432.

The previous prime is 52112111506633. The next prime is 52112111506649. The reversal of 52112111506640 is 4660511121125.

52112111506640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 52112111506640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52112111506649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30737684 + ... + 32388723.

Almost surely, 2^{52112111506640} is an apocalyptic number.

It is an amenable number.

52112111506640 is an abundant number, since it is smaller than the sum of its proper divisors (76386994595632).

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

52112111506640 is a wasteful number, since it uses less digits than its factorization.

52112111506640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63127044 (or 63127038 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

Adding to 52112111506640 its reverse (4660511121125), we get a palindrome (56772622627765).

The spelling of 52112111506640 in words is "fifty-two trillion, one hundred twelve billion, one hundred eleven million, five hundred six thousand, six hundred forty".