66010543854 has 16 divisors (see below), whose sum is σ = 132031928448. Its totient is φ = 22001707832.

The previous prime is 66010543759. The next prime is 66010543871. The reversal of 66010543854 is 45834501066.

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 7 ways as a sum of consecutive naturals, for example, 371442 + ... + 519605.

It is an arithmetic number, because the mean of its divisors is an integer number (8251995528).

Almost surely, 2^66010543854 is an apocalyptic number.

66010543854 is an abundant number, since it is smaller than the sum of its proper divisors (66021384594).

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

66010543854 is a wasteful number, since it uses less digits than its factorization.

66010543854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903399.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 66010543854 in words is "sixty-six billion, ten million, five hundred forty-three thousand, eight hundred fifty-four".