65707143642 has 48 divisors (see below), whose sum is σ = 171266746560. Its totient is φ = 17785391616.

The previous prime is 65707143641. The next prime is 65707143673. The reversal of 65707143642 is 24634170756.

65707143642 is a `hidden beast` number, since 6 + 570 + 7 + 1 + 4 + 36 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (65707143641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13720903 + ... + 13725690.

It is an arithmetic number, because the mean of its divisors is an integer number (3568057220).

Almost surely, 2^65707143642 is an apocalyptic number.

65707143642 is an abundant number, since it is smaller than the sum of its proper divisors (105559602918).

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

65707143642 is a wasteful number, since it uses less digits than its factorization.

65707143642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27446627 (or 27446624 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 65707143642 in words is "sixty-five billion, seven hundred seven million, one hundred forty-three thousand, six hundred forty-two".