65885605854 has 16 divisors (see below), whose sum is σ = 138706538880. Its totient is φ = 20805980760.

The previous prime is 65885605853. The next prime is 65885605859. The reversal of 65885605854 is 45850658856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65885605853) 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 7 ways as a sum of consecutive naturals, for example, 288971842 + ... + 288972069.

It is an arithmetic number, because the mean of its divisors is an integer number (8669158680).

Almost surely, 2^65885605854 is an apocalyptic number.

65885605854 is an abundant number, since it is smaller than the sum of its proper divisors (72820933026).

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

65885605854 is a wasteful number, since it uses less digits than its factorization.

65885605854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577943935.

The product of its (nonzero) digits is 46080000, while the sum is 60.

The spelling of 65885605854 in words is "sixty-five billion, eight hundred eighty-five million, six hundred five thousand, eight hundred fifty-four".