65806860042 has 96 divisors (see below), whose sum is σ = 181898196480. Its totient is φ = 16695171360.

The previous prime is 65806860037. The next prime is 65806860043. The reversal of 65806860042 is 24006860856.

65806860042 is a `hidden beast` number, since 6 + 580 + 6 + 8 + 60 + 0 + 4 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 65806860042.

It is not an unprimeable number, because it can be changed into a prime (65806860043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 492492 + ... + 611687.

It is an arithmetic number, because the mean of its divisors is an integer number (1894772880).

Almost surely, 2^65806860042 is an apocalyptic number.

65806860042 is an abundant number, since it is smaller than the sum of its proper divisors (116091336438).

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

65806860042 is a wasteful number, since it uses less digits than its factorization.

65806860042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104248 (or 1104245 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 65806860042 in words is "sixty-five billion, eight hundred six million, eight hundred sixty thousand, forty-two".