2113646020436 has 6 divisors (see below), whose sum is σ = 3698880535770. Its totient is φ = 1056823010216.

The previous prime is 2113646020427. The next prime is 2113646020459. The reversal of 2113646020436 is 6340206463112.

It can be written as a sum of positive squares in only one way, i.e., 2082122017936 + 31524002500 = 1442956^2 + 177550^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2113646020436.

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 as a sum of consecutive naturals, namely, 264205752551 + ... + 264205752558.

It is an arithmetic number, because the mean of its divisors is an integer number (616480089295).

Almost surely, 2^{2113646020436} is an apocalyptic number.

It is an amenable number.

2113646020436 is a deficient number, since it is larger than the sum of its proper divisors (1585234515334).

2113646020436 is a wasteful number, since it uses less digits than its factorization.

2113646020436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528411505113 (or 528411505111 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 2113646020436 in words is "two trillion, one hundred thirteen billion, six hundred forty-six million, twenty thousand, four hundred thirty-six".