129542366012 has 6 divisors (see below), whose sum is σ = 226699140528. Its totient is φ = 64771183004.

The previous prime is 129542365987. The next prime is 129542366047. The reversal of 129542366012 is 210663245921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16192795748 + ... + 16192795755.

It is an arithmetic number, because the mean of its divisors is an integer number (37783190088).

Almost surely, 2^129542366012 is an apocalyptic number.

It is an amenable number.

129542366012 is a deficient number, since it is larger than the sum of its proper divisors (97156774516).

129542366012 is a wasteful number, since it uses less digits than its factorization.

129542366012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32385591507 (or 32385591505 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 129542366012 in words is "one hundred twenty-nine billion, five hundred forty-two million, three hundred sixty-six thousand, twelve".