142581351668 has 24 divisors (see below), whose sum is σ = 285873854784. Its totient is φ = 60953904000.

The previous prime is 142581351629. The next prime is 142581351677. The reversal of 142581351668 is 866153185241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6338138 + ... + 6360593.

It is an arithmetic number, because the mean of its divisors is an integer number (11911410616).

Almost surely, 2^142581351668 is an apocalyptic number.

It is an amenable number.

142581351668 is an abundant number, since it is smaller than the sum of its proper divisors (143292503116).

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

142581351668 is a wasteful number, since it uses less digits than its factorization.

142581351668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12699143 (or 12699141 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 50.

The spelling of 142581351668 in words is "one hundred forty-two billion, five hundred eighty-one million, three hundred fifty-one thousand, six hundred sixty-eight".