42340143660064 has 12 divisors (see below), whose sum is σ = 83357157830814. Its totient is φ = 21170071830016.

The previous prime is 42340143660041. The next prime is 42340143660077. The reversal of 42340143660064 is 46006634104324.

It can be written as a sum of positive squares in only one way, i.e., 39203376787600 + 3136766872464 = 6261260^2 + 1771092^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42340143660064.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661564744657 + ... + 661564744720.

Almost surely, 2^{42340143660064} is an apocalyptic number.

It is an amenable number.

42340143660064 is a deficient number, since it is larger than the sum of its proper divisors (41017014170750).

42340143660064 is a wasteful number, since it uses less digits than its factorization.

42340143660064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323129489387 (or 1323129489379 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 43.

Adding to 42340143660064 its reverse (46006634104324), we get a palindrome (88346777764388).

The spelling of 42340143660064 in words is "forty-two trillion, three hundred forty billion, one hundred forty-three million, six hundred sixty thousand, sixty-four".