66010543853 has 4 divisors (see below), whose sum is σ = 66012504480. Its totient is φ = 66008583228.

The previous prime is 66010543759. The next prime is 66010543871. The reversal of 66010543853 is 35834501066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66010543853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66010543853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66010543883) 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 3 ways as a sum of consecutive naturals, for example, 928913 + ... + 997446.

It is an arithmetic number, because the mean of its divisors is an integer number (16503126120).

Almost surely, 2^66010543853 is an apocalyptic number.

It is an amenable number.

66010543853 is a deficient number, since it is larger than the sum of its proper divisors (1960627).

66010543853 is a wasteful number, since it uses less digits than its factorization.

66010543853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960626.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 66010543853 in words is "sixty-six billion, ten million, five hundred forty-three thousand, eight hundred fifty-three".