53340861553566 has 32 divisors (see below), whose sum is σ = 107088602100480. Its totient is φ = 17712475592064.

The previous prime is 53340861553543. The next prime is 53340861553591. The reversal of 53340861553566 is 66535516804335.

53340861553566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53340861553566² (a number of 28 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 200492406 + ... + 200758278.

It is an arithmetic number, because the mean of its divisors is an integer number (3346518815640).

Almost surely, 2^{53340861553566} is an apocalyptic number.

53340861553566 is an abundant number, since it is smaller than the sum of its proper divisors (53747740546914).

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

53340861553566 is a wasteful number, since it uses less digits than its factorization.

53340861553566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393280.

The product of its (nonzero) digits is 116640000, while the sum is 60.

The spelling of 53340861553566 in words is "fifty-three trillion, three hundred forty billion, eight hundred sixty-one million, five hundred fifty-three thousand, five hundred sixty-six".