129596550654 has 32 divisors (see below), whose sum is σ = 264110595840. Its totient is φ = 42382181312.

The previous prime is 129596550641. The next prime is 129596550673. The reversal of 129596550654 is 456055695921.

It is a junction number, because it is equal to n+sod(n) for n = 129596550594 and 129596550603.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 185847 + ... + 541970.

It is an arithmetic number, because the mean of its divisors is an integer number (8253456120).

Almost surely, 2^129596550654 is an apocalyptic number.

129596550654 is an abundant number, since it is smaller than the sum of its proper divisors (134514045186).

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

129596550654 is a wasteful number, since it uses less digits than its factorization.

129596550654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728384.

The product of its (nonzero) digits is 14580000, while the sum is 57.

The spelling of 129596550654 in words is "one hundred twenty-nine billion, five hundred ninety-six million, five hundred fifty thousand, six hundred fifty-four".