65857703042 has 4 divisors (see below), whose sum is σ = 98786554566. Its totient is φ = 32928851520.

The previous prime is 65857703029. The next prime is 65857703083. The reversal of 65857703042 is 24030775856.

65857703042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41315034121 + 24542668921 = 203261^2 + 156661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16464425759 + ... + 16464425762.

Almost surely, 2^65857703042 is an apocalyptic number.

65857703042 is a deficient number, since it is larger than the sum of its proper divisors (32928851524).

65857703042 is a wasteful number, since it uses less digits than its factorization.

65857703042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32928851523.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 65857703042 in words is "sixty-five billion, eight hundred fifty-seven million, seven hundred three thousand, forty-two".