129554235532 has 24 divisors (see below), whose sum is σ = 229501981296. Its totient is φ = 63982584768.

The previous prime is 129554235493. The next prime is 129554235571. The reversal of 129554235532 is 235532455921.

It is an interprime number because it is at equal distance from previous prime (129554235493) and next prime (129554235571).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557378 + ... + 1638454.

It is an arithmetic number, because the mean of its divisors is an integer number (9562582554).

Almost surely, 2^129554235532 is an apocalyptic number.

It is an amenable number.

129554235532 is a deficient number, since it is larger than the sum of its proper divisors (99947745764).

129554235532 is a wasteful number, since it uses less digits than its factorization.

129554235532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85977 (or 85975 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 46.

The spelling of 129554235532 in words is "one hundred twenty-nine billion, five hundred fifty-four million, two hundred thirty-five thousand, five hundred thirty-two".