42166671651724 has 6 divisors (see below), whose sum is σ = 73791675390524. Its totient is φ = 21083335825860.

The previous prime is 42166671651721. The next prime is 42166671651743. The reversal of 42166671651724 is 42715617666124.

It is a happy number.

42166671651724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42166671651721) 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 as a sum of consecutive naturals, namely, 5270833956462 + ... + 5270833956469.

Almost surely, 2^{42166671651724} is an apocalyptic number.

It is an amenable number.

42166671651724 is a deficient number, since it is larger than the sum of its proper divisors (31625003738800).

42166671651724 is a wasteful number, since it uses less digits than its factorization.

42166671651724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10541667912935 (or 10541667912933 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 58.

The spelling of 42166671651724 in words is "forty-two trillion, one hundred sixty-six billion, six hundred seventy-one million, six hundred fifty-one thousand, seven hundred twenty-four".